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).
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.New Accreditation Standard for Field Sampling and Measurement Organizations
Date Posted: 3-19-2026
TNI's Field Activities Expert Committee has revised the 2014 versions of Volume 1, General Requirements for Field Sampling and Measurement Organizations and TNI's National Environmental Field Activities Program (NEFAP) Executive Committee has adopted this new standard to replace the current 2014 standard with an effective date of December 1, 2028. The resulting final TNI standard and the Response-to-Comments document may be accessed by clicking the following links:
FSMO-V1 Response-to-Comments (Word)