US lawFederal (United States)RegulationsTitle 49 CFR — TransportationChapter VIII — NATIONAL TRANSPORTATION SAFETY BOARDPart 821 — RULES OF PRACTICE IN AIR SAFETY PROCEEDINGSSubpart B — General Rules Applicable to Petitions for Review, Appeals to the Board, and Appeals From Law Judges Initial Decisions and Appealable Orders821.549 C.F.R. § 821.5Procedural rules.Last amended: 2016Year: 2026Length: 37 wordsOfficial source Cite as 49 C.F.R. § 821.5 (2026)In proceedings under subparts C, D, F, and I, for situations not covered by a specific Board rule, the Federal Rules of Civil Procedure will be followed to the extent practicable. [78 FR 57534, Sept. 19, 2013]Next49 C.F.R. § 821.6