Any person wishing to obtain a copy of any record must follow the procedures in rules 240:1-3-2 or 240:1-3-3 and include a request for copies in the writing, administrative subpoena, court order or waiver of confidentiality. The document requesting the records must allow at least twenty (20) days from the date of service for production of the documents.
Okla. Admin. Code § 240:1-3-4