National Environmental Laboratory Accreditation Program (NELAP) Executive Committee
The purpose of this Executive Committee is to manage TNI's efforts in supporting a national program for the accreditation of environmental laboratories. Activities of the Committee include developing and establishing policies and procedures, interpretations, guidance documents, and any related tools used by accreditation bodies to implement NELAP.
The NELAP EC consists of 7 to 15 individuals with balanced representation of all stakeholder groups in TNI. To ensure that the program is implemented effectively and to address the needs of the stakeholder community, the NELAP EC will work in cooperation with other core programs within The NELAC Institute. Specifically, the NELAP EC:
- Will work with the NELAP Accreditation Council and the PT Program Executive Committee in the development of the laboratory accreditation system,
- Will work with the Consensus Standard Development Executive Committee to ensure that accreditation standards developed for this program are suitable for use, and
- Will seek the assistance of Expert Committees when developing guidance.
Conference Calls: 4th Thursday, 1:30 pm ET
Contact the Committee Chair or Program Administrator to request to participate for these calls.
Note: This committee was initially named the Laboratory Accreditation System Committee. Due to changes in the TNI bylaws, the committee was renamed the Laboratory Accreditation System Executive Committee on June 9, 2010, and was renamed again as the NELAP Executive Committee on February 11, 2026. Documents such as meeting minutes may show the previous names of this committee.
| Maria Friedman, Chair California ELAP Glendale, California [email protected] | Shari Pfalmer, Vice Chair Pace Analytical, LLC [email protected] |
| Ilona Taunton, Program Administrator The NELAC Institute Mill Spring, North Carolina [email protected] | Aaren Alger Alger Consulting & Training Mechanicsburg, Pennsylvania [email protected] |
| Patricia Carvajal San Antonio River Authority [email protected] | Mike Delaney MWRA - Retired Quincy, Massachusetts [email protected] |
| Scott Giatpaiboon Irvine Ranch Water District Irvine, California [email protected] | Brian Hulme EPA Edison, New Jersey [email protected] |
| Michele Potter New Jersey DEP Trenton, New Jersey [email protected] | Matt Sowards ACZ Laboratories, Inc. [email protected] |
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Current Projects:
Review of new TNI Standards
Development of national lab accreditation database
Standard Interpretation SOP Rev. 2 - Provisional (PDF, 362KB)

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.