---
kind: "section"
citation: "14 C.F.R. § 450.151"
title: "14"
number: "450.151"
heading: "Work shift and rest requirements."
url: "https://uscodex.org/cfr/14/450.151"
---

# §450.151. Work shift and rest requirements.

- (a) **General.** For any launch or reentry, an operator must document and implement rest requirements that ensure safety-critical personnel are physically and mentally capable of performing all assigned tasks.
- (b) **Work shifts and deviation approval process.** An operator's rest requirements must address the following:
  - (1) Duration of each work shift and the process for extending this shift, including the maximum allowable length of any extension;
  - (2) Number of consecutive work shift days allowed before rest is required;
  - (3) **Minimum rest period required—**
    - (i) Between each work shift, including the period of rest required immediately before the flight countdown work shift; and
    - (ii) After the maximum number of work shift days allowed; and
  - (4) **Approval process for any deviation from the rest requirements.**
- (c) **Application requirement.** An applicant must submit rest rules that demonstrate compliance with the requirements of this section.

## Notes

### Authority

Authority: 51 U.S.C. 50901-50923.

### Source

Source: Docket No. FAA-2019-0229, Amdt. 450-2, 85 FR 79719, Dec. 10, 202085 FR 79739, Dec. 10, 2020, unless otherwise noted.