Texas Drug Testing Laws for Employers

What Texas Law Does Not Do

Texas has no comprehensive statute regulating drug and alcohol testing by private employers. Labor Code Chapter 411, which covers workers' health and safety, runs from section 411.001 through 411.110 as currently published and contains no drug testing or drug policy provision.

That matters for a specific reason. A great deal of compliance guidance still refers to a former Chapter 411 provision requiring employers with 15 or more employees who carried workers' compensation coverage to adopt a drug abuse policy. That provision is not in the chapter as published today. We are describing what the current code says, not offering a legal conclusion about repeal, so if your Texas program was built around that requirement, confirm its status with your employment counsel before you change anything.

Marijuana: No Employment Protection

Texas has not legalized adult recreational cannabis. What it operates is a narrow prescription program, the Compassionate Use Program, created by the Texas Compassionate Use Act and codified at Occupations Code Chapter 169. Qualified physicians may prescribe low-THC cannabis, defined in section 169.001(3) as containing not more than 10 milligrams of THC per dosage unit.

Chapter 169 contains no employment provision. There is no anti-discrimination clause, no accommodation duty, and no restriction on acting upon a positive test. For a multi-state employer, Texas is therefore one of the states where your default national approach to cannabis generally works without modification, which is the opposite of the situation in California or New York.

The Compassionate Use Program has been amended in recent sessions, including changes to how low-THC cannabis is defined and how it may be administered, so it is worth re-checking if your policy references the program specifically.

Where the Real Limits Are

• Federal rules for regulated roles. A permissive state does not loosen federal testing requirements for safety-sensitive transportation positions.
• Your own written policy. In a state with no statutory script, the policy is the standard you will be measured against, by an arbitrator, an unemployment hearing, or a jury.
• Consistency. Discrimination claims do not require a testing statute. Testing some employees and not others in the same role is a problem in Texas exactly as it is anywhere else.
• Other states you operate in. Texas employers with locations elsewhere inherit those states' rules for those employees.

What This Means Practically

Texas employers usually have more freedom than their program actually uses. If your policy was written conservatively because someone assumed a state requirement existed, there may be room to simplify. Equally, freedom is not the same as protection: without the statutory safe harbors some states offer, a Texas program stands entirely on its own documentation.

The industries that test most heavily here reflect the state's economy: oil, gas and energy, construction, transportation and warehousing, manufacturing, and healthcare. Several of those involve federally regulated roles inside a larger non-regulated workforce, which is the structure that most often gets mixed up.