---
kind: "section"
citation: "42 C.F.R. § 84.53"
title: "42"
number: "84.53"
heading: "Service time; classification."
url: "https://uscodex.org/cfr/42/84.53"
---

# §84.53. Service time; classification.

- (a) Respirators described in subparts H through L of this part shall be classified, where applicable, as approved for use during the following prescribed service times:
  - (1) Four hours;
  - (2) Three hours;
  - (3) Two hours;
  - (4) One hour;
  - (5) Forty-five minutes;
  - (6) Thirty minutes;
  - (7) Fifteen minutes;
  - (8) Ten minutes;
  - (9) Five minutes; or
  - (10) **Three minutes.**
- (b) Other service times may be prescribed by the Institute.

## Notes

### Authority

Authority: 29 U.S.C. 651 et seq.; 30 U.S.C. 3, 5, 7, 811, 842(h), 844.

### Source

Source: 60 FR 30355, June 8, 1995, unless otherwise noted.