Okla. Stat. tit. 76, § 76-5.7: Accident or disaster involving hazardous materials -

Immunity from civil liability.

A. Any person who, in good faith and without prior

compensation, renders emergency care, assistance, or advice at the

scene of an accident or existing or impending disaster involving the

use, handling, transportation, transmission, or storage of hazardous

materials shall not be liable for damages resulting from the conduct

of said person in rendering said care, assistance, or advice unless

said damage was caused by the gross negligence of said person. The

provisions of this section shall not affect the potential liability

that any person may have which arises from the manufacture,

generation, transportation, storage, or handling of any hazardous

materials, or of any person who is engaged professionally and

commercially in rendering said emergency care, assistance or advice.

B. The immunity from civil liability provided for by the

provisions of this section shall extend only to the actions taken by

persons in rendering care, assistance, or advice at the time of said

accident or existing or impending disaster, and does not confer any

of said immunity to any person for actions taken prior to or after

the rendering of emergency care, assistance, or advice.

C. For the purposes of this section, the term hazardous

materials means petroleum or petroleum products, or any other

substance or compound which is toxic to human, animal, or plant

life.