Appendix A: Open Access Policy Table by Sponsor

To review publication and data sharing requirements, use the SPARC tool

SponsorOpen Access RequirementEmbargo PeriodOptions for ComplianceAllowability of CostsRepository InformationAdditional Notes and Resources
HHMI
OA required for peer-reviewed work under CC BY 4.0 by publication date
None – immediate OA required
Deposit author manuscript in authorized repository
Allowed for fully OA or Plan S-compliant journals; Not allowed for noncompliant hybrid journals

PubMed Central (PMC), or

Open Access Journal

See: HHMI Policy

Data/code availability statement required.

Preprints alone not sufficient. 

NASA
OA required for peer-reviewed scientific research publications authored or co-authored by researchers receiving NASA-appropriated funds
None – immediate OA required
Deposit author manuscript in authorized repository.
Allowed - NASA intends for researchers to pay reasonable costs to publish an article as open access, and that grant proceeds may be used for such purposes.

Published in journal participating in the Clearinghouse for the Open Research of the United States (CHORUS),

Published as OA AND indexed in the NASA Astrophysics Data System (ADS), or

Pubspace via the NASA Scientific and Technical Information (STI) repository

NSF
OA required for peer-reviewed work

Currently: Within 12 months of publication

On or after December 31, 2025:  None – immediate OA required

Deposit author manuscript in authorized repository
Allowed - Reasonable data curation and publication costs can be proposed.
Gates Foundation
 OA required for all published research funded by sponsor, under CC BY 4.0.
None – immediate OA required
 Deposit author manuscript in authorized repository
Not Allowed - Any publication fees are the responsibility of the grantees and their co-authors.

PubMed Central (PMC), or 

other openly accessible repository

See: Gates Foundation OA Policy

Underlying data supporting the Funded Manuscripts shall be made accessible immediately and as open as possible upon availability of the Funded Manuscripts. As soon as possible and to the extent feasible, Funded Manuscripts shall be published as a preprint in a preprint server (see policy for details)

Wellcome Trust
OA required for all original published research, research articles, monographs, and book chapters
No embargo for most articles; check policy for details.
Deposit author manuscript in authorized repository. See sponsor guidelines for specific guidance based on publication type.   
Allowed.  Wellcome will only fund the cost of article processing charges for research articles published in fully open access journals or platforms indexed in the Directory of Open Access Journals.
Open Access primarily through Europe PubMed Central 
Dept. of Energy
OA required for peer-reviewed, scholarly publications
None – immediate OA required
Deposit author manuscript in authorized repository
Allowed - DOE does not prohibit reasonable OA fees as an allowable cost
ONR / DARPA / DOD
OA required for peer-reviewed manuscripts documenting the results of DOD-funded research
None – immediate OA required
Deposit author manuscript in authorized repository
Allowed
PCORI
OA required for peer-reviewed articles reporting findings from PCORI-funded research 
Deposit within 4 weeks of acceptance. Be publicly available no later than 12 months after publication 
Deposit accepted manuscript in PMC within 4 weeks of acceptance.
Allowed – Permitted for one article that presents primary findings. Second article will be considered upon request. Generally, not to exceed $3,500.

See: PCORI Public Access Policy

Must acknowledge PCORI and include contract number

NIH
OA required for peer-reviewed author-manuscripts accepted for Publication 
None – must be made available on the date of publication within the journal
Deposit author manuscript in authorized repository

“Reasonable Publication Costs” may be used for APCs*

No charges allowed for depositing the author-manuscript into NIHMS (expectation is author will do this on their own, which is always free). Government Purpose License.

Updated: July 2025