---
kind: "section"
citation: "49 C.F.R. § 299.707"
title: "49"
number: "299.707"
heading: "Maintenance intervals."
url: "https://uscodex.org/cfr/49/299.707"
---

# §299.707. Maintenance intervals.

- (a) The initial scheduled maintenance intervals shall be based on those in effect on the Tokaido Shinkansen system as required under [§ 299.13(c)(1)](/cfr/49/299.13.md?p=c-1).
- (b) The maintenance interval of safety-critical components shall be changed only when justified by accumulated, verifiable operating data, and approved by FRA under paragraph [§ 299.713](/cfr/49/299.713.md).

## Notes

### Authority

Authority: 49 U.S.C. 20103, 20107, 20133, 20141, 20302-20303, 20306, 20701-20702, 21301-21302, 21304; 28 U.S.C. 2461, note; and 49 CFR 1.89.

### Source

Source: 85 FR 69731, Nov. 3, 2020, unless otherwise noted.