Announcement of Modified Working Draft Standard for NELAP Proficiency Testing
Date Posted: 7-16-2013
The TNI Proficiency Testing Expert Committee has developed a modified working draft standard related to Volume 1, Module 1 and Volume 2, Module 2 of the 2009 TNI laboratory accreditation standard.
In accordance with SOP 2-100, this working draft standard will be publicly discussed at the TNI semi-annual meeting in San Antonio, TX in August 2013. At this time, any TNI member or any member of the public may propose changes from the floor for consideration by the Proficiency Testing Expert Committee, and may also submit to the committee written comments within fifteen (15) days following the meeting. Written comments should be directed to the Chair, Mitzi Miller, at [email protected].
All documents are in PDF format. Deletions are in strike-out text, additions are underlined. Click the link below to download.
TNI NELAP Modified Working Draft Standard
Volume 1, Management and Technical Requirements for Laboratories Performing Environmental Analysis:
Module 1: Proficiency Testing
Volume 2, General Requirements for Accreditation Bodies Accrediting Environmental Laboratories:
Module 2: Proficiency Testing

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.