49 CFR § 299.707 - Maintenance intervals.

---
identifier: "/us/cfr/t49/s299.707"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 299.707 - Maintenance intervals."
title_number: 49
title_name: "Transportation"
section_number: "299.707"
section_name: "Maintenance intervals."
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "299"
part_name: "TEXAS CENTRAL RAILROAD HIGH-SPEED RAIL SAFETY STANDARDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_source: "85 FR 69731, Nov. 3, 2020, unless otherwise noted."
cfr_part: "299"
---


# 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).

(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.