12 C.F.R. § 1072.111
(a) The Bureau shall take appropriate steps to effectively communicate with applicants, participants, personnel of other federal entities, and members of the public.
(1) The Bureau shall furnish appropriate auxiliary aids where necessary to afford an individual with a disability an equal opportunity to participate in, and enjoy the benefits of, a program or activity conducted by the Bureau.
(2) Where the Bureau communicates with applicants and beneficiaries by
telephone, the Bureau shall use a telecommunication device for deaf persons (TDD's) or equally effective telecommunication systems to communicate with persons with impaired hearing.