29 C.F.R. § 1206.3 Age of authorization cards.
Title 29 - Labor
Authorizations must be signed and dated in the employee's own handwriting or witnessed mark. No authorizations will be accepted by the National Mediation Board in any employee representation dispute which bear a date prior to one year before the date of the application for the investigation of such dispute.
Title 29: Labor
PART 1206—HANDLING REPRESENTATION DISPUTES UNDER THE RAILWAY LABOR ACT
§ 1206.3 Age of authorization cards.
