Okla. Stat. tit. 63, § 695.6

Whenever any person holds a license, certificate, or other permit issued by any jurisdiction party evidencing the meeting of qualifications for professional, mechanical, or other skills, and when such assistance is requested by the receiving jurisdiction, such person shall be deemed licensed, certified, or permitted by the jurisdiction requesting assistance to render aid involving such skill to meet an emergency or disaster, or a nondisaster incident or activity as determined by the participating jurisdictions, subject to such limitations and conditions as the requesting jurisdiction may prescribe by executive order or otherwise.