# 49 C.F.R. § 71.8 (2026): Mountain zone

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_8

## Section

- **Citation:** 49 C.F.R. § 71.8 (2026)
- **Heading:** Mountain zone
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 49 CFR: Transportation / Part 71 / § 71.8: § 71.8   Mountain zone.

## Text

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.

## Nearby sections

- [49 C.F.R. § 71.1 (2026) § 71.1   Limits defined; exceptions authorized for certain rail operating purposes only.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_1.md)
- [49 C.F.R. § 71.2 (2026) § 71.2   Annual advancement of standard time.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_2.md)
- [49 C.F.R. § 71.3 (2026) § 71.3   Atlantic zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_3.md)
- [49 C.F.R. § 71.4 (2026) § 71.4   Eastern zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_4.md)
- [49 C.F.R. § 71.5 (2026) § 71.5   Boundary line between eastern and central zones.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_5.md)
- [49 C.F.R. § 71.6 (2026) § 71.6   Central zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_6.md)
- [49 C.F.R. § 71.7 (2026) § 71.7   Boundary line between central and mountain zones.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_7.md)
- [49 C.F.R. § 71.8 (2026) § 71.8   Mountain zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_8.md)
- [49 C.F.R. § 71.9 (2026) § 71.9   Boundary line between mountain and Pacific zones.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_9.md)
- [49 C.F.R. § 71.10 (2026) § 71.10   Pacific zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_10.md)
- [49 C.F.R. § 71.11 (2026) § 71.11   Alaska zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_11.md)
- [49 C.F.R. § 71.12 (2026) § 71.12   Hawaii-Aleutian zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_12.md)
- [49 C.F.R. § 71.13 (2026) § 71.13   Samoa zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_13.md)
- [49 C.F.R. § 71.14 (2026) § 71.14   Chamorro Zone.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_14.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T49_P71_S71_8. Check the current official text before relying on it. Not legal advice.