The AIHA Proficiency Analytical Testing Programs, LLC provides laboratories with the opportunity to improve and refine the analytical skills of their staff, while testing new procedures or training different analysts. These programs, which are open to all laboratories, allow laboratories' employees to demonstrate their ability to correctly analyze samples in the workplace and the environment.

All AIHA Proficiency Analytical Testing Programs, LLC meet international program requirements established under ILAC Guide 13.

Note: Proficiency testing policies and other documentation included on this website reflect the operations of AIHA Proficiency Analytical Testing Programs, LLC but may refer to the American Industrial Hygiene Association or AIHA since AIHA PAT Programs, LLC programs were once operated by AIHA. Some of these documents may also include the AIHA logos. Please note that these reference documents have been contributed by AIHA for use by AIHA PAT Programs, LLC until the LLC adopts updated versions of the documents.