39 C.F.R. § 254.1 – Adoption of U.S. Access Board Standards as Postal Service Standards of Facility Accessibility.

(a) The United States Postal Service adopts as its Architectural Barriers Act (ABA) “Standards for Facility Accessibility,” the following sections of 36 CFR part 1191:
Appendix A to Part 1191, Table of Contents for apps. C, D, and E.
Appendix C to Part 1191, Architectural Barriers Act, Scoping (which contains ABA Chapter 1, Application and Administration, and ABA Chapter 2, Scoping requirements); pertinent parts of Appendix D to Part 1191, Technical (which includes Chapters 3 through 10).
Appendix E to Part 1191, List of Figures and Index.
(b) These sections listed in paragraph (a) of this section are adopted verbatim, with the exception of the Advisory Notes, which are expressly excluded.