10 CFR §20.1705

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗

The licensee shall obtain authorization from the Commission before using assigned protection factors in excess of those specified in Appendix A to part 20. The Commission may authorize a licensee to use higher assigned protection factors on receipt of an application that—

(a)Describes the situation for which a need exists for higher protection factors; and
(b)Demonstrates that the respiratory protection equipment provides these higher protection factors under the proposed conditions of use.