DOT Regulations - 49 CFR Part 40

Subpart A - Administration Provisions

Subpart B - Employer Responsibilities

Subpart C - Specimen Collection Personnel

Subpart D - Collection Sites, Forms, Equipment and Supplies Used in DOT Urine and Oral Fluid Collections

Subpart E - Specimen Collections

Subpart F - Drug Testing Laboratories

Subpart G—Medical Review Officers and the Verification Process

Subpart H—Split Specimen Tests

Subpart I—Problems in Drug Tests

Subpart J—Alcohol Testing Personnel

Subpart K—Testing Sites, Forms, Equipment and Supplies Used in Alcohol Testing

Subpart L—Alcohol Screening Tests

Subpart M—Alcohol Confirmation Tests

Subpart N—Problems in Alcohol Testing

Subpart O—Substance Abuse Professionals and the Return-to-Duty Process

Subpart P—Confidentiality and Release of Information

Subpart Q—Roles and Responsibilities of Service Agents

Subpart R—Public Interest Exclusions

Appendices

Other DOT Guidance