Oklahoma employers should begin reviewing their workplace drug and alcohol testing policies now. House Bill 3127, effective on November 1, 2026, significantly revises the employment provisions of the Oklahoma Medical Marijuana and Patient Protection Act (63 O.S. § 427.8) (the “Act”). Below are the key changes employers should understand before the new law takes effect.

Mandatory Zero-Tolerance Standard for Safety-Sensitive Positions

HB 3127 makes an important change for safety-sensitive positions. The new law states a safety-sensitive employee "shall be subject to a zero-tolerance drug and alcohol standard," applied "regardless of any employer policy permitting impairment-based testing or alternative standards" for other roles. No second chance or more lenient standard may be extended to these positions. Because the Act does not define "zero tolerance," we recommend that employers should strictly apply it pending judicial guidance.

• Employer next step: Review policies to ensure they expressly apply a zero-tolerance standard to safety-sensitive positions and remove any language that would allow a second chance or impairment-based testing for those roles.

New Definition of “Safety-Sensitive Position”

Under the prior law, an employer could designate a position as safety-sensitive according to what the employer “reasonably believed.” The Legislature struck this “reasonable belief” language. A position is now safety-sensitive based on the duties the employee actually performs. The statutory list of qualifying duties itself is unchanged and remains expressly non-exclusive, so other safety-sensitive designations may still qualify if they present similar risks. The result is a narrower, more objective test: some roles previously labeled safety-sensitive may no longer qualify, while others clearly will.

• Employer next step: Re-evaluate existing safety-sensitive classifications and focus on the actual duties performed, as some positions previously labeled as safety-sensitive may no longer fit the revised standard, while other positions may now clearly qualify. Also remove policy language that relies solely on an employer’s subjective or “reasonable belief” designation of a position as safety sensitive.

Expanded Authority to Act on Positive Marijuana Tests

Previously, an employer could act on a positive marijuana test alone only for safety-sensitive roles, although separate exceptions applied to workplace possession, consumption, or impairment. HB 3127 removes that limit and substitutes a policy-based condition: an employer may take adverse action based solely on a positive marijuana test for any position, provided it acts pursuant to a written drug and alcohol testing policy adopted and enforced under the Standards for Workplace Drug and Alcohol Testing Act (the "Standards Act"). An informal practice or non-compliant policy will not suffice.

• Employer next step: Adopt or update a written drug and alcohol testing policy before November 1, 2026, to confirm it complies with the Standards Act. Because it must reach employees at least ten (10) days before enforcement, distribute it no later than mid-October 2026 to be in force on the effective date.

Strengthened Employer Authority to Enforce Workplace Drug Policies

The Act’s prior provision allowing employer policies prohibiting the use of marijuana "on the property or premises … or during hours of employment" language was replaced with "in the workplace or while performing job duties," reaching employees who are on call, driving between sites, or working remotely.

• Employer next step: Train supervisors and HR personnel on the updated rules and any changes made to drug and alcohol testing policies.

Employee Remedies Remain Limited

The amendment leaves the exclusive-remedy provision intact. An applicant or employee aggrieved by a willful violation of Section 427.8 has, as their exclusive remedy, the remedies provided under the Standards Act (40 O.S. § 563). In practice, that means a civil action must be brought within one year of an alleged willful violation, and recovery is generally limited to lost wages plus liquidated damages equal to lost wages, with reasonable costs and attorney’s fees available to the prevailing party. This fee-shifting provision cuts both ways and is a reason to ensure any adverse action is well documented and policy-based.

Please contact the Labor & Employment Practice Group of Titus Hillis Reynolds Love if you have any questions.