Okla. Stat. tit. 74, § 74-840-4.17: Employee performance and pay evaluation system

A. The Office of Management and Enterprise Services shall study

and establish a performance evaluation system that shall be used by

all executive branch agencies for completing employee performance

evaluations and making salary and performance-based pay decisions.

The purpose of the system is to effectively link pay and performance

while taking into consideration both the relativity of the position

to market and the performance of the employee. The Office of

Management and Enterprise Services may promulgate rules to implement

the provisions of this section.

B. The agency shall retain a copy of the performance evaluation

for each employee of the agency. A copy of the performance

evaluation shall be retained in the employee's personnel file.