As used in this subpart, the term party refers to any person who participates in a proceeding by the timely filing of a petition for rule making, comments on a notice of proposed rule making, a petition for reconsideration, or responsive pleadings in the manner prescribed by this subpart. The term does not include those who submit letters, telegrams or other informal materials.

[41 FR 1287, Jan. 7, 1976]