NELAP and California Proposition 65
Date Posted: 4-9-2020
TNI's National Environmental Laboratory Accreditation Program (NELAP) was established to accredit environmental laboratories that test environmental media (e.g., air, soil, water) for environmental contaminants using test methods published by the United States Environmental Protection Agency and other groups such as ASTM International and Standard Methods. Section 25900 of California's "Proposition 65" regulation contains a clause that among other entities, mentions laboratories accredited under NELAP. NELAP-accredited laboratories are not accredited to use test methods approved by the Consumer Products Safety Commission. The test methods these laboratories do use are specific to environmental analysis and are not appropriate for consumer products. TNI cautions all NELAP-accredited laboratories to not imply their NELAP accreditation has any basis for testing consumer products. TNI recommends those seeking to have consumer products tested use an accredited lab from the Consumer Products Safety Commission.

develop consensus standards for use by TNI's programs. This group has a support role in assisting other programs with activities such as guidance and standards interpretation.
fosters the generation of data of known and documented quality is through the National Environmental Laboratory Accreditation Program, or NELAP. The purpose of this program is to establish and implement a program for the accreditation of environmental laboratories.
is to establish and maintain a national PT program to support TNI’s National Environmental Laboratory Accreditation Program, and other activities.
Field Activities Program (NEFAP) Executive Committee is to establish and implement an accreditation program for field sampling and measurement organizations (FSMOs).
Audit Sample Program is to develop consensus standards for the manufacture and analysis of audit samples for source emission testing.
on a variety of topics of interest to the environmental measurement community. TNI also hosts two regularly scheduled meetings per year, typically in January and August. Both are a week long and involve open meetings of TNI committees as well as training courses and other special sessions.