14 C.F.R. § 121.377 Maintenance and preventive maintenance personnel duty time limitations.
Title 14 - Aeronautics and Space
Within the United States, each certificate holder (or person performing maintenance or preventive maintenance functions for it) shall relieve each person performing maintenance or preventive maintenance from duty for a period of at least 24 consecutive hours during any seven consecutive days, or the equivalent thereof within any one calendar month.
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart L—Maintenance, Preventive Maintenance, and Alterations
§ 121.377 Maintenance and preventive maintenance personnel duty time limitations.
