47 C.F.R. § 1.360 Proof of lack of record.
Title 47 - Telecommunication
The absence of an official record or entry of a specified tenor in an official record may be evidenced by a written statement signed by an officer, or by his deputy, who would have custody of the official record, if it existed, that after diligent search no record or entry of a specified tenor is found to exist in the records of his office, accompanied by a certificate as provided in §1.359. Such statement and certificate are admissible as evidence that the records of his office contain no such record or entry.
Title 47: Telecommunication
PART 1—PRACTICE AND PROCEDURE
Subpart B—Hearing Proceedings
Evidence
§ 1.360 Proof of lack of record.

