Laboratory Proficiency Testing (PT) Committee
The Laboratory Proficiency Testing Committee develops and maintains consensus standards for proficiency testing that support TNI programs.
Conference Calls: 1st Friday, 11am - 12:30pm ET
Contact the Committee Chair or Program Administrator to request to participate for these calls.
Note: On June 9, 2010, this committee was renamed the Laboratory Proficiency Testing Committee to reflect a change in the TNI bylaws. Documents such as meeting minutes may show the previous name of this committee, Proficiency Testing Committee.
| Carol Gebhart, Chair ALS Global Valley View, Ohio [email protected] | Robert Wyeth, Program Administrator The NELAC Institute West Seneca, New York [email protected] |
| Marina Aziz NYS DOH Environmental Laboratory Approval Program Albany, New York [email protected] | Hei Man Barrio Los Angeles County Sanitation Districts [email protected] |
| Thekkekalathil Chandraasekhar Florida DEP Tallahassee, Florida [email protected] | Amy DeMarco New York State DOH - ELAP Albany, New York [email protected] |
| Rachel Ellis NJ DEP [email protected] | Ronald Houck PA DEQ [email protected] |
| Taryn Hurley Oklahoma DEQ Oklahoma City, Oklahoma [email protected] | Ryan Pangelinan ORELAP Hillsboro, Oregon [email protected] |
| Danielle Pearman Phenova Golde, Colorado [email protected] | Amy Pollard PamCo Tech Baton Rouge, Louisiana [email protected] |
| Patrick Selig ANSI National Accreditation Board (ANAB) Fort Wayne, Indiana [email protected] | Brian Stringer ERA [email protected] |

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.