29 CFR § 1206.4 - Time limits on applications.

---
identifier: "/us/cfr/t29/s1206.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "29 CFR § 1206.4 - Time limits on applications."
title_number: 29
title_name: "Labor"
section_number: "1206.4"
section_name: "Time limits on applications."
chapter_name: "NATIONAL MEDIATION BOARD"
part_number: "1206"
part_name: "HANDLING REPRESENTATION DISPUTES UNDER THE RAILWAY LABOR ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "44 Stat. 577, as amended; 45 U.S.C. 151-163."
regulatory_source: "12 FR 3083, May 10, 1947, unless otherwise noted. Redesignated at 13 FR 8740, Dec. 30, 1948."
cfr_part: "1206"
---


# 1206.4 Time limits on applications.

Except in unusual or extraordinary circumstances, the National Mediation Board will not accept an application for investigation of a representation dispute among employees of a carrier:

(a) For a period of two (2) years from the date of a certification or decertification covering the same craft or class of employees on the same carrier, and

(b) For a period of one (1) year from the date on which:

(1) The Board dismissed a docketed application after having conducted an election among the same craft or class of employees on the same carrier and less than a majority of valid ballots cast were for representation; or

(2) The Board dismissed a docketed application covering the same craft or class of employees on the same carrier because no dispute existed as defined in § 1206.2 of these rules; or

(3) The Board dismissed a docketed application after the applicant withdrew an application covering the same craft or class of employees on the same carrier after the application was docketed by the Board.

[44 FR 10602, Feb. 22, 1979, as amended at 75 FR 26088, May 11, 2010; 84 FR 35989, July 26, 2019]