upcoming live training:
Environmental Laboratory Assessments - Basic Assessor Training: Virtual Event (June 2025)
Webinar by Marlene Moore, Starts Jun 23, 2025
latest on-demand training:
2024 Methods Update Rule for the Analysis of Effluent
Webcast by Jerry Parr and William Lipps
Ensuring Safety in the Environmental Laboratory
Webcast by Mary Johnson
Back to Basics for Analysts: Lab Skills and Techniques
Webcast by Dorothy Love

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.















