Laboratory Accreditation and Certification
Information on the Agency's Environmental Lab Accreditation Program under NELAC and its Drinking Water Lab Certification Program
The Texas Commission on Environmental Quality offers accreditations for all environmental laboratories according to standards adopted by the National Environmental Laboratory Accreditation Conference (NELAC).
Currently, the Commission also offers certifications based on the U.S. Environmental Protection Agencys Manual for the Certification of Laboratories Analyzing Drinking Water.
Laboratories providing data for compliance with the Safe Drinking Water Act must be certified or accredited under one of these two programs.
- Texas NELAC Accreditation Program and Accredited Laboratories
- Texas Drinking Water Laboratory Certification Program and Certified Laboratories




