California Pre‑Employment Drug Testing Laws in 2019: What Employers Must Know

Key Differences in California's 2019 Pre‑Employment Drug Testing Rules

California law in 2019 restricted pre‑employment drug testing to positions that are safety‑sensitive, such as operators of heavy machinery, drivers, or roles involving hazardous materials. Employers could not require a test for most other jobs, and they had to provide a written policy outlining the testing process, consent requirements, and employee rights.

Scope of Applicable Positions

The state defined a safety‑sensitive position as any role where impairment could endanger the employee or others. Typical examples include construction equipment operators, airline pilots, and public‑transport drivers. If a job did not meet this definition, the employer could not condition a job offer on a drug‑screen result.

Written Policy Requirements

Every employer offering pre‑employment testing had to adopt a written policy that:

• Specifies the types of tests (urine, saliva, etc.) and substances screened.
• Explains the circumstances under which testing is permitted.
• Details the employee's right to refuse testing and the consequences of refusal.
• Describes the procedure for handling positive results, including any confirmatory testing.

The policy must be posted in a conspicuous location and provided to each applicant before testing.

Consent and Confidentiality

Applicants needed to give written, informed consent prior to any sample collection. The consent form had to state that the test was voluntary, describe how results would be used, and confirm that the employer would keep results confidential, limiting access to those with a legitimate business need.

Handling Positive Test Results

When a test returned a positive result, California required a confirmatory test (often a second, more specific assay) before any employment decision was made. Employers could not automatically disqualify a candidate; they had to consider the confirmatory outcome and any applicable medical explanations, such as prescription medication.

Legal Consequences for Non‑Compliance

Violating the 2019 statutes could expose employers to civil penalties, including:

• Fines up to $2,500 per unlawful test.
• Potential damages for wrongful termination or discrimination claims.
• Attorney's fees and court costs if the employee sued.

Repeated violations could trigger investigations by the California Labor Commissioner's Office.

Comparison Table: 2019 California vs. General U.S. Pre‑Employment Testing