Certified Laboratory List

Find HHS-certified laboratories who may conduct drug testing for federal agencies and specific federally regulated industries.

• August 2024 List of Certified Laboratories and IITFs (PDF | 224 KB)
• August 2024 Certified Lab Listing by State (PDF | 116 KB)
• July 2024 List of Certified Laboratories and IITFs (PDF | 190 KB)
• July 2024 Certified Lab Listing by State (PDF | 109 KB)
• June 2024 List of Certified Laboratories and IITFs (PDF | 209 KB)
• June 2024 Certified Lab Listing by State (PDF | 160 KB)
• May 2024 List of Certified Laboratories and IITFs (PDF | 178 KB)
• May 2024 Certified Lab Listing by State (PDF | 160 KB)
• April 2024 List of Certified Laboratories and IITFs (PDF | 178 KB)
• April 2024 Certified Lab Listing by State (PDF | 160 KB)
• March 2024 List of Certified Laboratories and IITFs (PDF | 180 KB)
• March 2024 Certified Lab Listing by State (PDF | 153 KB)
• February 2024 List of Certified Laboratories and IITFs (PDF | 182 KB)
• February 2024 Certified Lab Listing by State (PDF | 116 KB)
• January 2024 List of Certified Laboratories and IITFs (PDF | 180 KB)
• January 2024 Certified Lab Listing by State (PDF | 124 KB)
• December 2023 List of Certified Laboratories and IITFs (PDF | 189 KB)
• December 2023 Certified Lab Listing by State (PDF | 117 KB)
• November 2023 List of Certified Laboratories and IITFs (PDF | 183 KB)
• November 2023 Certified Lab Listing by State (PDF | 116 KB)
• October 2023 List of Certified Laboratories and IITFs (PDF | 200 KB)
• October 2023 Certified Lab Listing by State (PDF | 116 KB)
• September 2023 List of Certified Laboratories and IITFs (PDF | 194 KB)
• September 2023 Certified Lab Listing by State (PDF | 116 KB)
• August 2023 List of Certified Laboratories and IITFs (PDF | 196 KB)
• August 2023 Certified Lab Listing by State (PDF | 116 KB)
• July 2023 List of Certified Laboratories and IITFs (PDF | 175 KB)
• July 2023 Certified Lab Listing by State (PDF | 116 KB)
• June 2023 List of Certified Laboratories and IITFs (PDF | 176 KB)
• June 2023 Certified Lab Listing by State (PDF | 155 KB)
• May 2023 List of Certified Laboratories and IITFs (PDF | 175 KB)
• May 2023 Certified Lab Listing by State (PDF | 116 KB)
• April 2023 List of Certified Laboratories and IITFs (PDF | 175 KB)
• April 2023 Certified Lab Listing by State (PDF | 112 KB)
• March 2023 List of Certified Laboratories and IITFs (PDF | 175 KB)
• March 2023 Certified Lab Listing by State (PDF | 153 KB)
• February 2023 List of Certified Laboratories and IITFs (PDF | 180 KB)
• February 2023 Certified Lab Listing by State (PDF | 153 KB)
• January 2023 List of Certified Laboratories and IITFs (PDF | 210 KB)
• January 2023 Certified Lab Listing by State (PDF | 164 KB)
• December 2022 List of Certified Laboratories and IITFs (PDF | 210 KB)
• December 2022 Certified Lab Listing by State (PDF | 157 KB)
• November 2022 List of Certified Laboratories and IITFs (PDF | 200 KB)
• November 2022 Certified Lab Listing by State (PDF | 152 KB)
• October 2022 List of Certified Laboratories and IITFs (PDF | 196 KB)
• October 2022 Certified Lab Listing by State (PDF | 112 KB)

View Archived Certified Laboratory Lists.