- NSCwww.nsc.org
- American National Standards Institutewww.ansi.org
- Safety Equipment Institute of Canadawww.seinet.org
- American Industrial Hygiene Associationwww.aiha.org
- Canada Safety Councilwww.safety-council.org
- European Safety Federationwww.eu-esf.org
- Prevent Blindness Americawww.preventblindness.org/
- NIOSHwww.cdc.gov/niosh/
