Pathways to Enable Secure Open-Source Ecosystems (PESOSE)

Opportunity ID: 361333

General Information

Assistance Listings

• 47.041 — Engineering
• 47.049 — Mathematical and Physical Sciences
• 47.050 — Geosciences
• 47.074 — Biological Sciences
• 47.075 — Social, Behavioral, and Economic Sciences
• 47.076 — STEM Education (formerly Education and Human Resources)
• 47.084 — NSF Technology, Innovation, and Partnerships
• —

Eligibility

Eligible Applicants

Others (see text field entitled "Additional Information on Eligibility" for clarification)

*Who May Submit Proposals: Proposals may only be submitted by the following:

-For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation.

-Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities.

-Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility.

-State and Local Governments

-Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus.

-Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131.

*Who May Serve as PI:

For Institutions of Higher Education (IHEs):

By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either:

a tenured or tenure-track position, or

a primary, full-time, paid appointment in a research or teaching position, or

a staff leadership role in an Open-Source Program Office or equivalent position

at a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution.

Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support.

For all other eligible proposing organizations:

The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S.

Individuals with primary appointments at non-U.S. based non-profit or non-U.S. based for-profit organizations are not eligible.

Description

The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity).

PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats.

This solicitation seeks three types of proposals, allowing teams to propose specific activities to: 1) scope and plan the establishment of an OSE, 2) establish and expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.

Additional Information

Contact	U.S. National Science Foundation
Contact Information	NSF support grantsgovsupport@nsf.gov
Email	grantsgovsupport@nsf.gov
Email Description	If you have any problems linking to this funding announcement, please contact the email address above.
Phone	703-292-4203

NSF Publication 26-506

Version History

Version history

Opp hist id / Opportunity id	361333
Opp hist id / Revision	0
Opportunity id	361333
Revision	0
Opportunity number	26-506
Opportunity title	Pathways to Enable Secure Open-Source Ecosystems
Owning agency code	NSF
Opportunity category / Category	D
Opportunity category / Description	Discretionary
Synopsis / Id / Opportunity id	361333
Synopsis / Id / Revision	0
Synopsis / Opportunity id	361333
Synopsis / Revision	0
Synopsis / Version	1
Synopsis / Agency code	NSF
Synopsis / Agency address desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Agency details / Code	NSF
Synopsis / Agency details / Seed	NSF
Synopsis / Agency details / Agency name	U.S. National Science Foundation
Synopsis / Agency details / Agency code	NSF
Synopsis / Agency details / Top agency code	NSF
Synopsis / Agency contact phone	703-292-4203
Synopsis / Agency contact name	U.S. National Science Foundation
Synopsis / Agency contact desc	NSF support grantsgovsupport@nsf.gov
Synopsis / Agency contact email	grantsgovsupport@nsf.gov
Synopsis / Agency contact email desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Synopsis desc	The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity). PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats. This solicitation seeks three types of proposals, allowing teams to propose specific activities to:1) scope and planthe establishment of an OSE, 2)establishand expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Synopsis / Response date	Sep 01, 2026 12:00:00 AM EDT
Synopsis / Funding desc link url	http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf26506
Synopsis / Funding desc link desc	NSF Publication 26-506
Synopsis / Posting date	Feb 19, 2026 12:00:00 AM EST
Synopsis / Archive date	Apr 02, 2037 12:00:00 AM EDT
Synopsis / Cost sharing	No
Synopsis / Number of awards	60
Synopsis / Estimated funding	40000000
Synopsis / Estimated funding formatted	40,000,000
Synopsis / Award ceiling	none
Synopsis / Award floor	none
Synopsis / Applicant eligibility desc	*Who May Submit Proposals: Proposals may only be submitted by the following: -For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation. -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility. -State and Local Governments -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. -Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131. *Who May Serve as PI: For Institutions of Higher Education (IHEs): By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either: <ul> <li>a tenured or tenure-track position, or</li> <li>a primary, full-time, paid appointment in a research or teaching position, or</li> <li>a staff leadership role in an Open-Source Program Office or equivalent position</li> </ul> at a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution. Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support. For all other eligible proposing organizations: The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S. Individuals withprimaryappointments atnon-U.S. basednon-profit ornon-U.S. basedfor-profit organizations are not eligible.
Synopsis / Create time stamp	Feb 19, 2026 11:00:11 PM EST
Synopsis / Action type	U
Synopsis / Action date	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Created date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Last updated date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Applicant types 1 / Id	25
Synopsis / Applicant types 1 / Description	Others (see text field entitled "Additional Information on Eligibility" for clarification)
Synopsis / Funding instruments 1 / Id	G
Synopsis / Funding instruments 1 / Description	Grant
Synopsis / Funding activity categories 1 / Id	ST
Synopsis / Funding activity categories 1 / Description	Science and Technology and other Research and Development
Synopsis / Response date str	2026-09-01-00-00-00
Synopsis / Posting date str	2026-02-19-00-00-00
Synopsis / Archive date str	2037-04-02-00-00-00
Synopsis / Create time stamp str	2026-02-19-23-00-11
Cfdas 1 / Id	432009
Cfdas 1 / Opportunity id	361333
Cfdas 1 / Revision	3
Cfdas 1 / Cfda number	47.041
Cfdas 1 / Program title	Engineering
Cfdas 2 / Id	432007
Cfdas 2 / Opportunity id	361333
Cfdas 2 / Revision	3
Cfdas 2 / Cfda number	47.049
Cfdas 2 / Program title	Mathematical and Physical Sciences
Cfdas 3 / Id	432011
Cfdas 3 / Opportunity id	361333
Cfdas 3 / Revision	3
Cfdas 3 / Cfda number	47.050
Cfdas 3 / Program title	Geosciences
Cfdas 4 / Id	432013
Cfdas 4 / Opportunity id	361333
Cfdas 4 / Revision	2
Cfdas 4 / Cfda number	47.070
Cfdas 4 / Program title	Computer and Information Science and Engineering
Cfdas 5 / Id	432008
Cfdas 5 / Opportunity id	361333
Cfdas 5 / Revision	3
Cfdas 5 / Cfda number	47.074
Cfdas 5 / Program title	Biological Sciences
Cfdas 6 / Id	432014
Cfdas 6 / Opportunity id	361333
Cfdas 6 / Revision	3
Cfdas 6 / Cfda number	47.075
Cfdas 6 / Program title	Social, Behavioral, and Economic Sciences
Cfdas 7 / Id	432010
Cfdas 7 / Opportunity id	361333
Cfdas 7 / Revision	3
Cfdas 7 / Cfda number	47.076
Cfdas 7 / Program title	STEM Education (formerly Education and Human Resources)
Cfdas 8 / Id	432012
Cfdas 8 / Opportunity id	361333
Cfdas 8 / Revision	3
Cfdas 8 / Cfda number	47.084
Cfdas 8 / Program title	NSF Technology, Innovation, and Partnerships
Cfdas 9 / Id	432015
Cfdas 9 / Opportunity id	361333
Cfdas 9 / Revision	3
Synopsis modified fields	Not specified
Forecast modified fields	Not specified

Opp hist id / Opportunity id	361333
Opp hist id / Revision	1
Opportunity id	361333
Revision	1
Opportunity number	26-506
Opportunity title	Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
Owning agency code	NSF
Opportunity category / Category	D
Opportunity category / Description	Discretionary
Modified comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Id / Opportunity id	361333
Synopsis / Id / Revision	1
Synopsis / Opportunity id	361333
Synopsis / Revision	1
Synopsis / Version	2
Synopsis / Agency code	NSF
Synopsis / Agency address desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Agency details / Code	NSF
Synopsis / Agency details / Seed	NSF
Synopsis / Agency details / Agency name	U.S. National Science Foundation
Synopsis / Agency details / Agency code	NSF
Synopsis / Agency details / Top agency code	NSF
Synopsis / Agency contact phone	703-292-4203
Synopsis / Agency contact name	U.S. National Science Foundation
Synopsis / Agency contact desc	NSF support grantsgovsupport@nsf.gov
Synopsis / Agency contact email	grantsgovsupport@nsf.gov
Synopsis / Agency contact email desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Synopsis desc	The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity).PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats.This solicitation seeks three types of proposals, allowing teams to propose specific activities to:1) scope and planthe establishment of an OSE, 2)establishand expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Synopsis / Response date	Sep 01, 2026 12:00:00 AM EDT
Synopsis / Funding desc link url	http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf26506
Synopsis / Funding desc link desc	NSF Publication 26-506
Synopsis / Posting date	Feb 19, 2026 12:00:00 AM EST
Synopsis / Archive date	Apr 02, 2037 12:00:00 AM EDT
Synopsis / Cost sharing	No
Synopsis / Number of awards	60
Synopsis / Estimated funding	40000000
Synopsis / Estimated funding formatted	40,000,000
Synopsis / Award ceiling	none
Synopsis / Award floor	none
Synopsis / Applicant eligibility desc	*Who May Submit Proposals: Proposals may only be submitted by the following: -For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation. -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility. -State and Local Governments -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. -Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131.*Who May Serve as PI:For Institutions of Higher Education (IHEs):By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either:<ul><li>a tenured or tenure-track position, or</li><li>a primary, full-time, paid appointment in a research or teaching position, or</li><li>a staff leadership role in an Open-Source Program Office or equivalent position</li></ul>at a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution.Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support.For all other eligible proposing organizations:The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S.Individuals withprimaryappointments atnon-U.S. basednon-profit ornon-U.S. basedfor-profit organizations are not eligible.
Synopsis / Create time stamp	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Mod comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Action type	U
Synopsis / Action date	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Created date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Last updated date	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Applicant types 1 / Id	25
Synopsis / Applicant types 1 / Description	Others (see text field entitled "Additional Information on Eligibility" for clarification)
Synopsis / Funding instruments 1 / Id	G
Synopsis / Funding instruments 1 / Description	Grant
Synopsis / Funding activity categories 1 / Id	ST
Synopsis / Funding activity categories 1 / Description	Science and Technology and other Research and Development
Synopsis / Response date str	2026-09-01-00-00-00
Synopsis / Posting date str	2026-02-19-00-00-00
Synopsis / Archive date str	2037-04-02-00-00-00
Synopsis / Create time stamp str	2026-09-01-05-01-09
Cfdas 1 / Id	432009
Cfdas 1 / Opportunity id	361333
Cfdas 1 / Revision	3
Cfdas 1 / Cfda number	47.041
Cfdas 1 / Program title	Engineering
Cfdas 2 / Id	432007
Cfdas 2 / Opportunity id	361333
Cfdas 2 / Revision	3
Cfdas 2 / Cfda number	47.049
Cfdas 2 / Program title	Mathematical and Physical Sciences
Cfdas 3 / Id	432011
Cfdas 3 / Opportunity id	361333
Cfdas 3 / Revision	3
Cfdas 3 / Cfda number	47.050
Cfdas 3 / Program title	Geosciences
Cfdas 4 / Id	432013
Cfdas 4 / Opportunity id	361333
Cfdas 4 / Revision	2
Cfdas 4 / Cfda number	47.070
Cfdas 4 / Program title	Computer and Information Science and Engineering
Cfdas 5 / Id	432008
Cfdas 5 / Opportunity id	361333
Cfdas 5 / Revision	3
Cfdas 5 / Cfda number	47.074
Cfdas 5 / Program title	Biological Sciences
Cfdas 6 / Id	432014
Cfdas 6 / Opportunity id	361333
Cfdas 6 / Revision	3
Cfdas 6 / Cfda number	47.075
Cfdas 6 / Program title	Social, Behavioral, and Economic Sciences
Cfdas 7 / Id	432010
Cfdas 7 / Opportunity id	361333
Cfdas 7 / Revision	3
Cfdas 7 / Cfda number	47.076
Cfdas 7 / Program title	STEM Education (formerly Education and Human Resources)
Cfdas 8 / Id	432012
Cfdas 8 / Opportunity id	361333
Cfdas 8 / Revision	3
Cfdas 8 / Cfda number	47.084
Cfdas 8 / Program title	NSF Technology, Innovation, and Partnerships
Cfdas 9 / Id	432015
Cfdas 9 / Opportunity id	361333
Cfdas 9 / Revision	3
Synopsis modified fields	revision; version; opportunityTitle; synopsisDesc; applicantEligibilityDesc; createTimeStamp
Forecast modified fields	Not specified

Opp hist id / Opportunity id	361333
Opp hist id / Revision	2
Opportunity id	361333
Revision	2
Opportunity number	26-506
Opportunity title	Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
Owning agency code	NSF
Opportunity category / Category	D
Opportunity category / Description	Discretionary
Modified comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Id / Opportunity id	361333
Synopsis / Id / Revision	2
Synopsis / Opportunity id	361333
Synopsis / Revision	2
Synopsis / Version	3
Synopsis / Agency code	NSF
Synopsis / Agency address desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Agency details / Code	NSF
Synopsis / Agency details / Seed	NSF
Synopsis / Agency details / Agency name	U.S. National Science Foundation
Synopsis / Agency details / Agency code	NSF
Synopsis / Agency details / Top agency code	NSF
Synopsis / Agency contact phone	703-292-4203
Synopsis / Agency contact name	U.S. National Science Foundation
Synopsis / Agency contact desc	NSF support grantsgovsupport@nsf.gov
Synopsis / Agency contact email	grantsgovsupport@nsf.gov
Synopsis / Agency contact email desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Synopsis desc	The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity). PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats. This solicitation seeks three types of proposals, allowing teams to propose specific activities to: 1) scope and plan the establishment of an OSE, 2) establish and expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Synopsis / Response date	Mar 02, 2027 12:00:00 AM EST
Synopsis / Funding desc link url	http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf26506
Synopsis / Funding desc link desc	NSF Publication 26-506
Synopsis / Posting date	Feb 19, 2026 12:00:00 AM EST
Synopsis / Archive date	Apr 01, 2027 12:00:00 AM EDT
Synopsis / Cost sharing	No
Synopsis / Number of awards	60
Synopsis / Estimated funding	40000000
Synopsis / Estimated funding formatted	40,000,000
Synopsis / Award ceiling	none
Synopsis / Award floor	none
Synopsis / Applicant eligibility desc	*Who May Submit Proposals: Proposals may only be submitted by the following: -For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation. -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility. -State and Local Governments -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. -Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131. *Who May Serve as PI: For Institutions of Higher Education (IHEs): By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either: a tenured or tenure-track position, or a primary, full-time, paid appointment in a research or teaching position, or a staff leadership role in an Open-Source Program Office or equivalent position at a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution. Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support. For all other eligible proposing organizations: The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S. Individuals with primary appointments at non-U.S. based non-profit or non-U.S. based for-profit organizations are not eligible.
Synopsis / Create time stamp	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Mod comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Action type	U
Synopsis / Action date	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Created date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Last updated date	Sep 01, 2026 05:01:09 AM EDT
Synopsis / Applicant types 1 / Id	25
Synopsis / Applicant types 1 / Description	Others (see text field entitled "Additional Information on Eligibility" for clarification)
Synopsis / Funding instruments 1 / Id	G
Synopsis / Funding instruments 1 / Description	Grant
Synopsis / Funding activity categories 1 / Id	ST
Synopsis / Funding activity categories 1 / Description	Science and Technology and other Research and Development
Synopsis / Response date str	2027-03-02-00-00-00
Synopsis / Posting date str	2026-02-19-00-00-00
Synopsis / Archive date str	2027-04-01-00-00-00
Synopsis / Create time stamp str	2026-09-01-05-01-09
Cfdas 1 / Id	432009
Cfdas 1 / Opportunity id	361333
Cfdas 1 / Revision	3
Cfdas 1 / Cfda number	47.041
Cfdas 1 / Program title	Engineering
Cfdas 2 / Id	432007
Cfdas 2 / Opportunity id	361333
Cfdas 2 / Revision	3
Cfdas 2 / Cfda number	47.049
Cfdas 2 / Program title	Mathematical and Physical Sciences
Cfdas 3 / Id	432011
Cfdas 3 / Opportunity id	361333
Cfdas 3 / Revision	3
Cfdas 3 / Cfda number	47.050
Cfdas 3 / Program title	Geosciences
Cfdas 4 / Id	432013
Cfdas 4 / Opportunity id	361333
Cfdas 4 / Revision	2
Cfdas 4 / Cfda number	47.070
Cfdas 4 / Program title	Computer and Information Science and Engineering
Cfdas 5 / Id	432008
Cfdas 5 / Opportunity id	361333
Cfdas 5 / Revision	3
Cfdas 5 / Cfda number	47.074
Cfdas 5 / Program title	Biological Sciences
Cfdas 6 / Id	432014
Cfdas 6 / Opportunity id	361333
Cfdas 6 / Revision	3
Cfdas 6 / Cfda number	47.075
Cfdas 6 / Program title	Social, Behavioral, and Economic Sciences
Cfdas 7 / Id	432010
Cfdas 7 / Opportunity id	361333
Cfdas 7 / Revision	3
Cfdas 7 / Cfda number	47.076
Cfdas 7 / Program title	STEM Education (formerly Education and Human Resources)
Cfdas 8 / Id	432012
Cfdas 8 / Opportunity id	361333
Cfdas 8 / Revision	3
Cfdas 8 / Cfda number	47.084
Cfdas 8 / Program title	NSF Technology, Innovation, and Partnerships
Cfdas 9 / Id	432015
Cfdas 9 / Opportunity id	361333
Cfdas 9 / Revision	3
Synopsis modified fields	revision; version; synopsisDesc; responseDate; archiveDate; applicantEligibilityDesc
Forecast modified fields	Not specified

Opp hist id / Opportunity id	361333
Opp hist id / Revision	3
Opportunity id	361333
Revision	3
Opportunity number	26-506
Opportunity title	Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
Owning agency code	NSF
Opportunity category / Category	D
Opportunity category / Description	Discretionary
Modified comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Id / Opportunity id	361333
Synopsis / Id / Revision	3
Synopsis / Opportunity id	361333
Synopsis / Revision	3
Synopsis / Version	4
Synopsis / Agency code	NSF
Synopsis / Agency address desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Agency details / Code	NSF
Synopsis / Agency details / Seed	NSF
Synopsis / Agency details / Agency name	U.S. National Science Foundation
Synopsis / Agency details / Agency code	NSF
Synopsis / Agency details / Top agency code	NSF
Synopsis / Agency contact phone	703-292-4203
Synopsis / Agency contact name	U.S. National Science Foundation
Synopsis / Agency contact desc	NSF support grantsgovsupport@nsf.gov
Synopsis / Agency contact email	grantsgovsupport@nsf.gov
Synopsis / Agency contact email desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Synopsis desc	The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity). PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats. This solicitation seeks three types of proposals, allowing teams to propose specific activities to: 1) scope and plan the establishment of an OSE, 2) establish and expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Synopsis / Response date	Mar 02, 2027 12:00:00 AM EST
Synopsis / Funding desc link url	http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf26506
Synopsis / Funding desc link desc	NSF Publication 26-506
Synopsis / Posting date	Feb 19, 2026 12:00:00 AM EST
Synopsis / Archive date	Apr 01, 2027 12:00:00 AM EDT
Synopsis / Cost sharing	No
Synopsis / Number of awards	60
Synopsis / Estimated funding	40000000
Synopsis / Estimated funding formatted	40,000,000
Synopsis / Award ceiling	none
Synopsis / Award floor	none
Synopsis / Applicant eligibility desc	*Who May Submit Proposals: Proposals may only be submitted by the following: -For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation. -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility. -State and Local Governments -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. -Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131.*Who May Serve as PI:For Institutions of Higher Education (IHEs):By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either:a tenured or tenure-track position, ora primary, full-time, paid appointment in a research or teaching position, ora staff leadership role in an Open-Source Program Office or equivalent positionat a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution.Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support.For all other eligible proposing organizations:The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S.Individuals with primary appointments at non-U.S. based non-profit or non-U.S. based for-profit organizations are not eligible.
Synopsis / Create time stamp	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Mod comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Action type	U
Synopsis / Action date	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Created date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Last updated date	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Applicant types 1 / Id	25
Synopsis / Applicant types 1 / Description	Others (see text field entitled "Additional Information on Eligibility" for clarification)
Synopsis / Funding instruments 1 / Id	G
Synopsis / Funding instruments 1 / Description	Grant
Synopsis / Funding activity categories 1 / Id	ST
Synopsis / Funding activity categories 1 / Description	Science and Technology and other Research and Development
Synopsis / Response date str	2027-03-02-00-00-00
Synopsis / Posting date str	2026-02-19-00-00-00
Synopsis / Archive date str	2027-04-01-00-00-00
Synopsis / Create time stamp str	2026-10-06-11-46-37
Cfdas 1 / Id	432009
Cfdas 1 / Opportunity id	361333
Cfdas 1 / Revision	3
Cfdas 1 / Cfda number	47.041
Cfdas 1 / Program title	Engineering
Cfdas 2 / Id	432007
Cfdas 2 / Opportunity id	361333
Cfdas 2 / Revision	3
Cfdas 2 / Cfda number	47.049
Cfdas 2 / Program title	Mathematical and Physical Sciences
Cfdas 3 / Id	432011
Cfdas 3 / Opportunity id	361333
Cfdas 3 / Revision	3
Cfdas 3 / Cfda number	47.050
Cfdas 3 / Program title	Geosciences
Cfdas 4 / Id	432008
Cfdas 4 / Opportunity id	361333
Cfdas 4 / Revision	3
Cfdas 4 / Cfda number	47.074
Cfdas 4 / Program title	Biological Sciences
Cfdas 5 / Id	432014
Cfdas 5 / Opportunity id	361333
Cfdas 5 / Revision	3
Cfdas 5 / Cfda number	47.075
Cfdas 5 / Program title	Social, Behavioral, and Economic Sciences
Cfdas 6 / Id	432010
Cfdas 6 / Opportunity id	361333
Cfdas 6 / Revision	3
Cfdas 6 / Cfda number	47.076
Cfdas 6 / Program title	STEM Education (formerly Education and Human Resources)
Cfdas 7 / Id	432012
Cfdas 7 / Opportunity id	361333
Cfdas 7 / Revision	3
Cfdas 7 / Cfda number	47.084
Cfdas 7 / Program title	NSF Technology, Innovation, and Partnerships
Cfdas 8 / Id	432015
Cfdas 8 / Opportunity id	361333
Cfdas 8 / Revision	3
Synopsis modified fields	revision; version; cfdas; synopsisDesc; applicantEligibilityDesc; createTimeStamp
Forecast modified fields	Not specified

Synopsis changes

revision

version

synopsisDesc

archiveDate

applicantEligibilityDesc

Id	361333
Revision	4
Opportunity number	26-506
Opportunity title	Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
Owning agency code	NSF
Modified comments	Updated Synopsis via NSF Grants Opportunity Sync
Opportunity category / Category	D
Opportunity category / Description	Discretionary
Synopsis / Opportunity id	361333
Synopsis / Version	5
Synopsis / Agency code	NSF
Synopsis / Agency name	U.S. National Science Foundation
Synopsis / Agency phone	703-292-4203
Synopsis / Agency address desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Agency details / Code	NSF
Synopsis / Agency details / Seed	NSF
Synopsis / Agency details / Agency name	U.S. National Science Foundation
Synopsis / Agency details / Agency code	NSF
Synopsis / Agency details / Top agency code	NSF
Synopsis / Top agency details / Code	NSF
Synopsis / Top agency details / Seed	NSF
Synopsis / Top agency details / Agency name	U.S. National Science Foundation
Synopsis / Top agency details / Agency code	NSF
Synopsis / Top agency details / Top agency code	NSF
Synopsis / Agency contact phone	703-292-4203
Synopsis / Agency contact name	U.S. National Science Foundation
Synopsis / Agency contact desc	NSF support grantsgovsupport@nsf.gov
Synopsis / Agency contact email	grantsgovsupport@nsf.gov
Synopsis / Agency contact email desc	If you have any problems linking to this funding announcement, please contact the email address above.
Synopsis / Synopsis desc	The Pathways to Enable Secure Open-Source Ecosystems (PESOSE) program supports the translation of open-source science and engineering-focused research products into safe and sustainable ecosystems that address national and societal challenges. Open-source tools such as software, hardware, machine learning models, languages, and data platforms are designed to be shared as they are publicly-accessible and modifiable. These tools spark innovation in critical fields as varied as artificial intelligence (AI) and cloud computing, banking, healthcare, research, education, next-gen manufacturing, mobility, and National security (including cybersecurity). PESOSE supports the creation of managing organizations for these ecosystems, ensuring strong governance, distributed development, and broad user communities across academia, industry, and government. PESOSE also supports enhancements to the safety, security, and privacy of Open-Source Ecosystems (OSE) by addressing significant vulnerabilities, both technical and socio-technical, to improve the resistance of the ecosystem against threats. This solicitation seeks three types of proposals, allowing teams to propose specific activities to: 1) scope and plan the establishment of an OSE, 2) establish and expand a sustainable OSE based on a robust, promising open-source product that meets an emergent societal or national need, and 3) improve the safety, security, and privacy of an existing OSE and its products.
Synopsis / Response date	Mar 02, 2027 12:00:00 AM EST
Synopsis / Funding desc link url	http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf26506
Synopsis / Funding desc link desc	NSF Publication 26-506
Synopsis / Posting date	Feb 19, 2026 12:00:00 AM EST
Synopsis / Archive date	Oct 07, 2027 12:00:00 AM EDT
Synopsis / Cost sharing	No
Synopsis / Number of awards	60
Synopsis / Estimated funding	40000000
Synopsis / Estimated funding formatted	40,000,000
Synopsis / Award ceiling	none
Synopsis / Award floor	none
Synopsis / Applicant eligibility desc	*Who May Submit Proposals: Proposals may only be submitted by the following: -For-profit organizations: U.S.-based commercial organizations, including small businesses, with strong capabilities in scientific or engineering research or education and a passion for innovation. -Non-profit, non-academic organizations: Independent museums, observatories, research laboratories, professional societies and similar organizations located in the U.S. that are directly associated with educational or research activities. -Other Federal Agencies and Federally Funded Research and Development Centers (FFRDCs): Prospective proposers from other Federal Agencies and FFRDCs, including NSF sponsored FFRDCs, must follow the guidance in PAPPG Chapter I.E.2 regarding limitations on eligibility. -State and Local Governments -Institutions of Higher Education (IHEs): Two- and four-year IHEs (including community colleges) accredited in, and having a campus located in the US, acting on behalf of their faculty members. Special Instructions for International Branch Campuses of US IHEs: If the proposal includes funding to be provided to an international branch campus of a US institution of higher education (including through use of sub-awards and consultant arrangements), the proposer must explain the benefit(s) to the project of performance at the international branch campus, and justify why the project activities cannot be performed at the US campus. -Tribal Nations: An American Indian or Alaska Native tribe, band, nation, pueblo, village, or community that the Secretary of the Interior acknowledges as a federally recognized tribe pursuant to the Federally Recognized Indian Tribe List Act of 1994, 25 U.S.C. §§ 5130-5131. *Who May Serve as PI: For Institutions of Higher Education (IHEs): By the submission deadline, any PI, co-PI, or other Senior/Key Personnel must hold either: a tenured or tenure-track position, or a primary, full-time, paid appointment in a research or teaching position, or a staff leadership role in an Open-Source Program Office or equivalent position at a U.S.-based campus of an Institution of Higher Education (see above), with exceptions granted for family or medical leave, as determined by the submitting institution. Individuals with primary appointments at overseas branch campuses of U.S. institutions of higher education are not eligible. Researchers from foreign academic institutions who contribute essential expertise to the project may participate as Senior/Key Personnel or collaborators but may not receive NSF support. For all other eligible proposing organizations: The PI must be an employee of the proposing organization who is normally resident in the U.S. and must be acting as an employee of the proposing organization while performing PI responsibilities. The PI may perform the PI responsibilities while temporarily out of the U.S. Individuals with primary appointments at non-U.S. based non-profit or non-U.S. based for-profit organizations are not eligible.
Synopsis / Create time stamp	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Mod comments	Updated Synopsis via NSF Grants Opportunity Sync
Synopsis / Created date	Feb 19, 2026 11:00:11 PM EST
Synopsis / Last updated date	Oct 06, 2026 11:46:37 AM EDT
Synopsis / Applicant types 1 / Id	25
Synopsis / Applicant types 1 / Description	Others (see text field entitled "Additional Information on Eligibility" for clarification)
Synopsis / Funding instruments 1 / Id	G
Synopsis / Funding instruments 1 / Description	Grant
Synopsis / Funding activity categories 1 / Id	ST
Synopsis / Funding activity categories 1 / Description	Science and Technology and other Research and Development
Synopsis / Response date str	2027-03-02-00-00-00
Synopsis / Posting date str	2026-02-19-00-00-00
Synopsis / Archive date str	2027-10-07-00-00-00
Synopsis / Create time stamp str	2026-10-06-11-46-37
Agency details / Code	NSF
Agency details / Seed	NSF
Agency details / Agency name	U.S. National Science Foundation
Agency details / Agency code	NSF
Agency details / Top agency code	NSF
Top agency details / Code	NSF
Top agency details / Seed	NSF
Top agency details / Agency name	U.S. National Science Foundation
Top agency details / Agency code	NSF
Top agency details / Top agency code	NSF
Synopsis attachment folders	Not specified
Synopsis document urls	Not specified
Syn att change comments	Not specified
Cfdas 1 / Id	432009
Cfdas 1 / Opportunity id	361333
Cfdas 1 / Cfda number	47.041
Cfdas 1 / Program title	Engineering
Cfdas 2 / Id	432007
Cfdas 2 / Opportunity id	361333
Cfdas 2 / Cfda number	47.049
Cfdas 2 / Program title	Mathematical and Physical Sciences
Cfdas 3 / Id	432011
Cfdas 3 / Opportunity id	361333
Cfdas 3 / Cfda number	47.050
Cfdas 3 / Program title	Geosciences
Cfdas 4 / Id	432008
Cfdas 4 / Opportunity id	361333
Cfdas 4 / Cfda number	47.074
Cfdas 4 / Program title	Biological Sciences
Cfdas 5 / Id	432014
Cfdas 5 / Opportunity id	361333
Cfdas 5 / Cfda number	47.075
Cfdas 5 / Program title	Social, Behavioral, and Economic Sciences
Cfdas 6 / Id	432010
Cfdas 6 / Opportunity id	361333
Cfdas 6 / Cfda number	47.076
Cfdas 6 / Program title	STEM Education (formerly Education and Human Resources)
Cfdas 7 / Id	432012
Cfdas 7 / Opportunity id	361333
Cfdas 7 / Cfda number	47.084
Cfdas 7 / Program title	NSF Technology, Innovation, and Partnerships
Cfdas 8 / Id	432015
Cfdas 8 / Opportunity id	361333
Opportunity pkgs 1 / Id	291993
Opportunity pkgs 1 / Topportunity id	361333
Opportunity pkgs 1 / Family id	14
Opportunity pkgs 1 / Dialect	XFDL2.2
Opportunity pkgs 1 / Opportunity number	26-506
Opportunity pkgs 1 / Opportunity title	Pathways to Enable Secure Open-Source Ecosystems (PESOSE)
Opportunity pkgs 1 / Opening date	2026-02-19
Opportunity pkgs 1 / Closing date	2027-03-02
Opportunity pkgs 1 / Owning agency code	NSF
Opportunity pkgs 1 / Agency details / Code	NSF
Opportunity pkgs 1 / Agency details / Seed	NSF
Opportunity pkgs 1 / Agency details / Agency name	U.S. National Science Foundation
Opportunity pkgs 1 / Agency details / Agency code	NSF
Opportunity pkgs 1 / Agency details / Top agency code	NSF
Opportunity pkgs 1 / Top agency details / Code	NSF
Opportunity pkgs 1 / Top agency details / Seed	NSF
Opportunity pkgs 1 / Top agency details / Agency name	U.S. National Science Foundation
Opportunity pkgs 1 / Top agency details / Agency code	NSF
Opportunity pkgs 1 / Top agency details / Top agency code	NSF
Opportunity pkgs 1 / Contact info	PESOSE Program E-mail: PESOSE@nsf.gov Phone: (703)292-8804
Opportunity pkgs 1 / Grace period	7
Opportunity pkgs 1 / Electronic required	N
Opportunity pkgs 1 / Expected application count	200
Opportunity pkgs 1 / Expected application size	50
Opportunity pkgs 1 / Open to applicant type	3
Opportunity pkgs 1 / Is multi project	N
Opportunity pkgs 1 / Extension	pdf
Opportunity pkgs 1 / Mimetype	application/pdf
Opportunity pkgs 1 / Last update	Oct 06, 2026 11:46:38 AM EDT
Opportunity pkgs 1 / Workspace compatible flag	Y
Opportunity pkgs 1 / Package id	PKG00291993
Opportunity pkgs 1 / Opening date str	2026-02-19-00-00-00
Opportunity pkgs 1 / Closing date str	2027-03-02-00-00-00
Closed opportunity pkgs	Not specified
Original due date	Sep 01, 2026 12:00:00 AM EDT
Synopsis modified fields	revision; version; synopsisDesc; archiveDate; applicantEligibilityDesc
Forecast modified fields	Not specified
Error messages	Not specified
Syn post date in past	Yes
Doc type	synopsis
Forecast hist count	0
Synopsis hist count	4
Assist compatible	No
Assist url	Not specified
Related opps	Not specified
Ost	POSTED

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