No pleading filed pursuant to Sec. 1.51 or Sec. 1.294 will be considered unless it is accompanied by proof of service upon the parties to the proceeding. (Secs. 4(i), 303(r) and 5(c)(1) of the Communications Act of 1934, as amended; 47 CFR 0.61 and 0.283) [49 FR 4381, Feb. 6, 1984, as amended at 62 FR 4171, Jan. 29, 1997]