Okla. Stat. tit. 63, § 63-987: Operations and activities exempt

This act shall not be construed as applying to, nor shall it

apply to: (a) construction, reconstruction, operation or maintenance

of any high-voltage overhead conductor, supporting structures or

appurtenances for the support or operation of high-voltage conductor

by person authorized by the owner or operator; nor (b) to work being

done on telephone or communication circuits or their supporting

structures; nor (c) to the operation or maintenance of any equipment

traveling or moving upon fixed rails of any railroad company subject

to the jurisdiction of the Interstate Commerce Commission and/or to

the Corporation Commission of the State of Oklahoma.