Okla. Stat. tit. 70, § 70-509.9: Discrimination prohibited - Certain acts prohibited

No employee shall be discriminated against by the board of

education, superintendent or any other administrative officer of a

district or by any employee organization, its officers or any member

thereof because of his exercise or nonexercise of rights under this

act. It shall be prohibited for an employee organization, employee

or employer to impede, restrain or coerce an employer or employees

in the exercise of the rights guaranteed in Sections 509.1 through

509.10 of this title.