Educational leave with pay may be granted at the discretion of the Appointing Authority for a period not to exceed 1 year, provided, however, the Appointing Authority may grant such extensions of leave as may appear best to serve the interests of the agency. Extensions shall not be for more than 1 additional year. On educational leave, annual and sick leave shall accrue. The Appointing Authority may also grant leave of absence without pay for educational purposes.
Okla. Admin. Code § 260:25-15-42