Okla. Stat. tit. 21, § 1230.6

Any person who knowingly and willfully fails to secure a permit required by or pursuant to law, and who, without lawful permit or authorization, knowingly and willfully disposes, directs the disposal or aids and abets the disposal of hazardous waste into a sanitary sewer system without appropriate pretreatment, or at a solid waste landfill, transfer station or processing facility, or at any unpermitted disposal place commits the offense of unlawful disposal of hazardous waste which shall be deemed a Class D1 felony offense.