[Code of Federal Regulations] [Title 36, Volume 3] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 36CFR1193.21] [Page 512] TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY CHAPTER XI--ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE BOARD PART 1193--TELECOMMUNICATIONS ACT ACCESSIBILITY GUIDELINES--Table of Contents Subpart B--General Requirements Sec. 1193.21 Accessibility, usability, and compatibility. Where readily achievable, telecommunications equipment and customer premises equipment shall comply with the requirements of subpart C of this part. Where it is not readily achievable to comply with subpart C of this part, telecommunications equipment and customer premises equipment shall comply with the requirements of subpart D of this part, if readily achievable.