36 C.F.R. § 1193.39 Prohibited reduction of accessibility, usability, and compatibility.
Title 36 - Parks, Forests, and Public Property
(a) No change shall be undertaken which decreases or has the effect of decreasing the net accessibility, usability, or compatibility of telecommunications equipment or customer premises equipment. (b) Exception: Discontinuation of a product shall not be prohibited.
Title 36: Parks, Forests, and Public Property
PART 1193—TELECOMMUNICATIONS ACT ACCESSIBILITY GUIDELINES
Subpart C—Requirements for Accessibility and Usability
§ 1193.39 Prohibited reduction of accessibility, usability, and compatibility.

