29 C.F.R. § 1206.4 Time limits on applications.
Title 29 - Labor
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 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 eligible voters particpated in the election; 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]
Title 29: Labor
PART 1206—HANDLING REPRESENTATION DISPUTES UNDER THE RAILWAY LABOR ACT
§ 1206.4 Time limits on applications.