Okla. Stat. tit. 70, § 70-6-108: Certificate of qualifications - Unlawful to teach

without.

Except for service as a director of a public developmental

research school and service by a faculty member of a higher

education institution affiliated with a public developmental

research school as specifically authorized in this act and except as

provided for in Section 6-101 of this title, it shall be unlawful

for any person to serve, or to contract or agree to serve, as

superintendent, elementary superintendent, principal, supervisor,

librarian, school nurse, classroom teacher or other instructional,

supervisory or administrative employee of a school district unless

the person holds a valid certificate of qualification issued in

accordance with the rules of the State Board of Education to perform

the services the person performs or contracts or agrees to perform.

The State Board of Education shall provide for the certification of

elementary superintendents.