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.Announcement
On November 30, 2023, the California Environmental Laboratory Accreditation Program (ELAP) made this announcement:
As of January 1, 2024, every laboratory, regardless of certificate expiration date, is required to implement the 2016 TNI Standard incorporated by reference in ELAP's regulations.
TNI had made a copy of an unlicensed version of the 2016 standard available for viewing prior to January 1, 2024. Now that the California rule is in effect, all laboratories are required to have a licensed copy of the standard that you can show the laboratory assessors per sections 4.3.1 and 4.3.2 of Volume 1. You can purchase the standard here: https://www.nelac-institute.org/content/CSDP/standards.php?ap3=1_1
Note: There is a discount, equivalent to joining TNI, if you first join TNI and then purchase the standard. Doing so will also give you discounts on training courses, templates, and other TNI documents. Click here to join.