The following link leads to the Directory of AIHA Laboratory Accreditation Programs, LLC accredited laboratories. The Directory is searchable by a number of options, including Lab Name, Program and Location.

AIHA LAP Directory of Accredited Laboratories

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.

The directory search can be narrowed by programs noted below.


Includes labs accredited for Lead in Soil, Paint, Settled Dust and Air matrices. All labs accredited in the ELLAP are also recognized as part of the National Lead Laboratory Accreditation Program (NLLAP).


Includes labs accredited for Fungal direct examination and culturable analysis, as well as Bacterial culturable analysis.


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.


Includes labs accredited for Food Microbiology, Food Chemistry or Food Residue Chemistry.

Unique Scopes

Currently includes labs accredited for CPSC product testing and Cannabis testing.

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). To utilize this function the Accreditation Program must be selected first and additional drop down options, leading to the method will appear.