18 CFR § 1308.51 - Form.

(a) A subpoena shall state the name of the Board and the title of the appeal; shall command the person to whom it is directed to attend and give testimony at a deposition or hearing, as appropriate, and, if appropriate, to produce specified books, papers, documents, or tangible things at a time and place therein specified; and shall notify the person of the right to request that the subpoena be quashed or modified and of the penalties for contumacy or failure to obey.

(b) [Reserved]