14 CFR § 258.6 - Effective and compliance dates.
---
identifier: "/us/cfr/t14/s258.6"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 258.6 - Effective and compliance dates."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "258.6"
section_name: "Effective and compliance dates."
chapter_name: "OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS)"
subchapter_number: "A"
subchapter_name: "ECONOMIC REGULATIONS"
part_number: "258"
part_name: "DISCLOSURE OF CHANGE-OF-GAUGE SERVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 40113(a) and 41712."
regulatory_source: "64 FR 12860, Mar. 15, 1999, unless otherwise noted."
cfr_part: "258"
---
# 258.6 Effective and compliance dates.
(a) This Part is effective as of August 25, 1999.
(b) Compliance with the following sections is mandatory as of August 25, 1999: §§ 258.1, 258.2, 258.3, 258.4, 258.5(a), 258.5(b), and 258.6.
(c) Compliance with § 258.5(c) is mandatory as of March 15, 2000.
[64 FR 46821, Aug. 27, 1999]