Okla. Stat. tit. 63 § 2411
In any proceeding before any department, board, commission, agency or licensing authority of the state, in any political subdivision or municipality, wherein any deaf or hard-of-hearing person is a defendant, applicant, spectator as required by subtitle A of Title II of the Americans with Disabilities Act, Pub. L. 101-336, complainant, principal witness or party, such department, board, commission, agency, licensing authority, political subdivision or municipality shall appoint a qualified legal interpreter upon request of the deaf or hard-of-hearing individual.
The individual who is deaf or hard-of-hearing shall determine which type of qualified legal interpreter best fits the needs of the individual. It shall be the duty of the appointing authority to inform the deaf or hard-of-hearing person of the rights of that person to the services of an interpreter.
Okla. Stat. tit. 63, § 2411