GroundRules
49 CFR 71.8: Mountain zone.
Where this section sits in the code
- Title 49—Transportation
- Subtitle A—Office of the Secretary of Transportation
- PART 71—STANDARD TIME ZONE BOUNDARIES
The fourth zone, the mountain standard time zone, includes that part of the United States that is west of the boundary line between the central and mountain standard time zones described in § 71.7 and east of the boundary line between the mountain and Pacific standard time zones described in § 71.9.
Collected 2026-08-27T02:26:34Z. Source file · JSON