Yes. According to Sect. 7.2, of the NOAA PARR Plan: "Submitted manuscripts shall be required to be in an accessible format (for example, Adobe Portable Document Format [PDF] with Adobe Accessibility Check performed)." Section 508 compliance standards can be found here.
Section 508 of the U.S. Workforce Rehabilitation Act of 1973 mandates that all electronic and information technology developed, procured, maintained, or used by the federal government be accessible to people with disabilities, including employees and members of the public.
NOTE: If a document in the IR is not accessible please contact us and we will provide an accessible version.