upcoming live training:
Managing Change to Minimize Risk and Increase Success
Webinar by Dorothy Love, Starts Oct 30, 2025
Introduction to TNI Assessments and Evaluations
Webinar by Marlene Moore, Starts Nov 07, 2025
latest on-demand training:
Wastewater Laboratory - Basics and Essential Analyses
Webcast by Mary Johnson
Keys to Quality Management
Webcast by Dorothy Love
2024 Methods Update Rule for the Analysis of Effluent
Webcast by Jerry Parr and William Lipps

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.













