NLRB Form 502 (RM) - Certification Petition

Entity Mandating Poster: National Labor Relations Board

Applicability: An employer seeking to determine support for a new labor organization or to determine whether there is continuing support for an existing labor organization.

Filing Specifications: The petition must be filed by using E-File at www.nlrb.gov or by submitting an original of the petition to the NLRB office in the region in which the employer concerned is located. The petition must be accompanied by both a showing of interest and a certificate of service showing service on all parties named in the petition of the following: (1) the petition; (2) a blank Statement of Position form (Form NLRB 505); and (3) a Description of Representation Case Procedures in Certification and Decertification Cases form (Form NLRB 4812).

Obtaining This Form: This form may be downloaded directly from the National Labor Relations Board website.

Additional Resources

National Labor Relations Board