Oklahoma Employers Face Modified Medical Marijuana Law

Oklahoma employers take note – the Sooner State has updated its Medial Marijuana and Patient Protection Act. The changes go into effect November 1, 2026.

What does the law currently say?

Under the law today, unless otherwise required by federal law or required to obtain federal funding, employers cannot:

• Refuse to hire, discharge, discipline or otherwise penalize an applicant or employee solely on the basis of their status as a medical marijuana licensee.

• Refuse to hire, discharge, discipline or otherwise penalize an applicant or employee based solely on a positive test for marijuana components or metabolites unless:

  • the individual is not in possession of a valid medical marijuana license,

  • the individual possesses, consumes or is under the influence of medical marijuana at work or while fulfilling employment obligations, or

  • the position is one involving safety-sensitive job duties.

What does HB 3127 change?

House Bill 3127 modifies the third condition listed above that references safety-sensitive job duties, striking the original language replacing it with the following:

such action is taken pursuant to a written drug and alcohol testing policy adopted and enforced in accordance with the Standards for Workplace Drug and Alcohol Testing Act, Section 551 et seq. of Title 40 of the Oklahoma Statutes.

HB3127 also includes new language noting that an applicant or employee employed in a safety-sensitive position shall be subject to a zero-tolerance drug and alcohol standard. This requirement applies whether or not an employer maintains a policy permitting impairment-based testing or alternative standards for positions not designated as safety-sensitive. Additionally, HB3127 tweaks the definition of safety-sensitive position limiting it to positions that perform one or more of the duties outlined in Section K.

Can employers still regulate medical marijuana use?

HB3127 tweaks the law’s existing language addressing how the law impacts employers but does not fundamentally change an employer’s right to regulate medical marijuana use in the workplace.

Under the modified law, employers are not required to:

• Permit or accommodate the use, possession, sale, transfer, or being under the influence of medical marijuana on the property or premises of any place of employment or workplace or while performing job duties.

• Reimburse a person for costs associated with the use of medical marijuana.

Employers may also continue to implement and enforce written drug and alcohol testing policies, including policies that prohibit the use of marijuana in the workplace or while performing job duties.

What should employers do now?

Employers should review their drug and alcohol workplace policies in light of the changes that take effect November 1, 2026. The modified language that allows employers to take action on a positive drug test pursuant to a written drug and alcohol testing policy adopted and enforced in accordance with Oklahoma’s Standards for Workplace Drug and Alcohol Testing Act, arguably affords employers more wiggle room than exists under the law today.

Any employers with safety-sensitive roles should also review those positions to ensure they should remain designated as safety-sensitive once the amended language takes effect. The amendments remove the language that allowed employers to designate a position as safety-sensitive based on a reasonable belief the role could affect the safety and health of others, instead limiting the classification to specific duties performed by the position.