Accredited Laboratories


  • 100373 PSI - Professional Service Industries, Inc. - IHLAP, ELLAP, EMLAP
  • 101070 Wisconsin Occupational Health Laboratory - IHLAP, ELLAP, EMLAP 
  • 101140 Bureau Veritas North America - IHLAP
  • 101435 Envirotest, Ltd. - IHLAP
  • 101580 Kennecott Environmental and Industrial Hygiene Laboratory - IHLAP
  • 102336 Los Angeles County ACWM - ELLAP
  • 102959 EnviroHealth Technologies, Inc. - IHLAP, ELLAP
  • 102960 Northeast Laboratory Services, Inc. - EMLAP
  • 163061 CASSEN Testing Laboratories - IHLAP
  • 178889 NASA Johnson Space Center - EMLAP
  • 200297 SGS-CSTC Standards Technical Services (Shanghai) Co., Ltd. - IHLAP
  • 208306 Atlas Environmental Lab - IHLAP

The following sets of links lead to program specific lists of AIHA Laboratory Accreditation Programs, LLC accredited laboratories. The lists are sortable on a number of headers, including State, Lab Name, Phone Number (Area Code), and Commercial Availability (fee for sampling services).  Double-clicking on a lab's name in the list will open up the details of the laboratory's scope of accreditation.


Please note that a laboratory for which a published standard method (e.g., NIOSH 7082) is listed may have been assessed and accredited for that method as modified by the laboratory, rather than as published. Always contact the laboratory to verify exact procedures and ensure suitability to your needs.







  • Industrial Hygiene Laboratory Accreditation Program (IHLAP)
  • Includes labs accredited for methods in any core program field of testing such as ICP, AA, GC, GC/MS, Ion Chromatography, UV/VIS, PCM, PLM or TEM. Additionally, specialized fields of testing requiring additional proficiency testing are also covered such as Beryllium, Pharmaceutical and Compressed Air analysis.



Unique Scopes


Search functionality: It is now possible to search our accredited laboratories by Program, Field of Testing/Matrix, or standard reference method (e.g. NIOSH 7400).


Updated: 04/01​/2014