Okla. Admin. Code § 365:15-7-28
Insurers shall not refuse to insure, surcharge or place an applicant for insurance in a higher priced program or plan if the applicant is not required to have insurance pursuant to Chapter 7 of Title 47 of the Oklahoma statutes. An insurer shall not be prohibited from applying a rating plan approved by the Commissioner.
Added at 22 Ok Reg 2041, eff 7-14-05