Okla. Admin. Code § 612:1-13-8
If the client population served by a program is 5% or more non-English speaking, then a formalized procedure for bilingual services and literature in the respective language must be provided.
Added at 10 Ok Reg 4607, eff 9-1-93 (emergency)
Added at 11 Ok Reg 2425, eff 7-1-94