Okla. Stat. tit. 40, § 40-466: Modification of rules and regulations - Grounds

The Commissioner of Labor may modify the application of rules or

regulations to an operator who demonstrates a hardship resulting

from such application if the public safety will remain secure. Any

owner or operator may make a written request to the Commissioner of

Labor specifying the hardships which are his grounds for requesting

such modification. Any authorization by the Commissioner of Labor

shall be in writing and shall describe the conditions under which

the modifications shall be permitted. A permanent record of all

modifications shall be kept in the Department of Labor for public

inspection.