AIHA Registry Programs LLC

3141 Fairview Park Drive, Ste. 777
Falls Church, VA 22042
(703) 846-0755

AIHA Registry Programs promote the recognition of individuals who have demonstrated competency in a specialized area of industrial/occupational hygiene practice. AIHA Registry Programs encourage individuals to keep their skills and knowledge current by demonstrating competency through recurring assessment.

American Board of Industrial Hygiene

6005 W. St. Joe Highway, Ste. 300
Lansing, MI 48917
(517) 321-2638

Assay Technology Inc./AT Labs/MNR Services

1382 Stealth St.
Livermore, CA 94551
(800) 833-1258

Assay Technology manufactures cost-effective and convenient air samplers to monitor chemicals in a worker’s personal breathing zone, for over 200 vapors. We provide AIHA-LAP, LLC-accredited* IH lab services. We also test respiratory cartridges challenged against chemical vapors and manufacture the Miller Nelson temp-RHflow control system for generating controlled atmospheres.

*For accreditation certificates and scope pages, visit

Board of Certified Safety Professionals (BCSP)

8645 Guion Road
Indianapolis, IN 46268
(317) 593-4800

Canadian Registration Board of Occupational Hygienists

P.O. Box 324
Carleton Place, ON K7C 3P4
(613) 223-4508

Columbia Southern University

21982 University Lane
Orange Beach, AL 36561
(251) 923-4055


250 Bloor St. E., 9th Floor
Toronto, ON M4W 1E5
(416) 863-6800

EMSL Analytical Inc.

200 Route 130 N.
Cinnaminson, NJ 08077
(800) 220-3675

HNU-PID Analyzers LLC

2 Washington Circle #4
Sandwich, MA 02563
(774) 413-5281

HNU manufactures portable, hand-held, and fixed continuous monitors for a variety of industrial hygiene and workplace safety applications. Featured products include hand-held GC for the specific measurement of benzene and other toxic gases, FIDs, PIDs with ppb range, multi-detector portable GCs, and fence-line monitors with remote data collections.

National Registry of Certified Chemists

125 Rose Ann Lane
West Grove, PA 19390
(610) 322-0657


2687 John Hawkins Parkway
Hoover, AL 35244
(205) 980-0180

OHD provides users with both mask fittesting and sound monitoring devices to fit their personal needs. The OHD Quantifit provides an OSHA-approved controlled negative pressure mask fit test in as little as three minutes with no consumables. We also offer the complete line of Cirrus sound monitoring equipment.

SGS Galson, an SGS North America Inc. Company

6601 Kirkville Road
East Syracuse, NY 13057
(888) 432-5227

SPAN Safety Workshops

402 W. Mt. Vernon, #111
Nixa, MO 65714
(417) 724-2881