49 USC § 21107 - Maximum duty hours and subjects of collective bargaining

---
identifier: "/us/usc/t49/s21107"
source: "usc"
legal_status: "official_legal_evidence"
title: "49 USC § 21107 - Maximum duty hours and subjects of collective bargaining"
title_number: 49
title_name: "TRANSPORTATION"
section_number: "21107"
section_name: "Maximum duty hours and subjects of collective bargaining"
chapter_number: 211
chapter_name: "HOURS OF SERVICE"
part_number: "A"
part_name: "SAFETY"
positive_law: true
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 891.)"
---


# § 21107. Maximum duty hours and subjects of collective bargaining

The number of hours established by this chapter that an employee may be required or allowed to be on duty is the maximum number of hours consistent with safety. Shorter hours of service and time on duty of an employee are proper subjects for collective bargaining between a railroad carrier and its employees.

---

**Source Credit**: (Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 891.)

| RevisedSection | Source (U.S. Code) | Source (Statutes at Large) |
| --- | --- | --- |
| 21107 | 45:63a(d) (related to 45:64). | Mar. 4, 1907, ch. 2939, 34 Stat. 1415, § 3A(d) (related to § 4); added July 8, 1976, Pub. L. 94–348, § 4(d), 90 Stat. 819; June 22, 1988, Pub. L. 100–342, § 16(4), 102 Stat. 635. |
|  | 45:64. | Mar. 4, 1907, ch. 2939, § 4, 34 Stat. 1417; restated Dec. 26, 1969, Pub. L. 91–169, § 1, 83 Stat. 464; June 22, 1988, Pub. L. 100–342, § 16(5), 102 Stat. 635. |