47 CFR § 1.211
Service
February 16, 2021
Except as otherwise expressly provided in this chapter, all pleadings filed in a hearing proceeding shall be served upon all other counsel in the proceeding or, if a party is not represented by counsel, then upon such party. All such papers shall be accompanied by proof of service. For provisions governing the manner of service, see §1.47.
[29 FR 8219, June 30, 1964]