skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Attention:

The NSF Public Access Repository (PAR) system and access will be unavailable from 11:00 PM ET on Friday, November 14 until 2:00 AM ET on Saturday, November 15 due to maintenance. We apologize for the inconvenience.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


Contact Us

For general questions about Public Access, please see our Frequently Asked Questions

For technical questions or immediate assistance, please contact the NSF Help Desk

7 AM - 9 PM Eastern Time, Monday through Friday (except for federal holidays):

  • Email the Help Desk at: rgov@nsf.gov
  • Call the Help Desk at 1-800-381-1532
  • To give feedback or comments, use the .