How often does OSHA require workers to be fit tested?
The requirement is one fit test, once per year. On January 8, 1998 OSHA released a new Respiratory Protection Standard 29CFR1910.134. That standard replaced the fit testing requirements contained in the various substance-specific OSHA standards that have been released by OSHA over the last 20 years. Refer to Application Note ITI-056 Respirator Fit Testing Highlights for OSHA Respiratory Protection Standard 29CFR1910.134 for information regarding the fit testing requirements of the new OSHA standard.