10 CFR § 20.1705 - Application for use of higher assigned protection factors.

---
identifier: "/us/cfr/t10/s20.1705"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 20.1705 - Application for use of higher assigned protection factors."
title_number: 10
title_name: "Energy"
section_number: "20.1705"
section_name: "Application for use of higher assigned protection factors."
chapter_name: "NUCLEAR REGULATORY COMMISSION"
part_number: "20"
part_name: "STANDARDS FOR PROTECTION AGAINST RADIATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Atomic Energy Act of 1954, secs. 11, 53, 63, 65, 81, 103, 104, 161, 170H, 182, 186, 223, 234, 274, 1701 (42 U.S.C. 2014, 2073, 2093, 2095, 2111, 2133, 2134, 2201, 2210h, 2232, 2236, 2273, 2282, 2021, 2297f); Energy Reorganization Act of 1974, secs. 201, 202 (42 U.S.C. 5841, 5842); Low-Level Radioactive Waste Policy Amendments Act of 1985, sec. 2 (42 U.S.C. 2021b); 44 U.S.C. 3504 note."
cfr_part: "20"
---


# 20.1705 Application for use of higher assigned protection factors.

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.

[64 FR 54557, Oct. 7, 1999]