Sec. 250.6. Parties

The term party or parties as used herein in connection with proceedings under section 706 of the Act, shall mean the respondent-employer, or employers, multiple employers, the person or organization making the charge, and any other persons or labor organizations whose intervention in the proceeding has been permitted by the board or administrative law judge, except as limited by the board or administrative law judge in granting such permission. As used herein in connection with proceedings under section 705 of the Act, party or parties shall mean the employer, or employers, multiple employers, the person or labor organization filing the petition, any other person or organization designated in the notice of hearing and served therewith, and any other persons or labor organizations whose interventions have been permitted by the board or trial examiner, except as limited by the board or trial examiner in granting such permission.