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.Clarification on Approved PT Providers
Date Posted: 1-13-2012
On January 21, 2011, the TNI Board approved ACLASS as a second Proficiency Test Provider Accreditor (PTPA). See http://www.nelac-institute.org/cms/posts/1295595175.php. Some PT Providers are now obtaining their accreditation from ACLASS and this has resulted in some states indicating these providers are no longer approved since they are no longer accredited by A2LA. TNI would like everyone to know that either organization is acceptable as a PTPA and thus any PT provider accredited by either organization is qualified to perform PT studies according to the TNI requirements. Currently, the following organizations are accredited PT Providers.
Absolute Standards, Inc.
Environmental Resource Associates, Inc.
NYS DOH Environmental Laboratory Approval Program
NSI Solutions, Inc.
Resource Technology Corporation (RTC)
Wibby Environmental
TNI maintains a list of approved providers on the PT Program page ( http://www.nelac-institute.org/neptp.php).