33 C.F.R. § 20.804 Objections and offers of proof.
Title 33 - Navigation and Navigable Waters
(a) Any party objecting to the admission or exclusion of evidence shall concisely state the grounds. A ruling on every objection must appear in the record. No party may raise an objection to the admission or exclusion of evidence on appeal unless he or she raised it before the ALJ. (b) Whenever evidence is objected to, the party offering it may make an offer of proof, which must appear in the record.
Title 33: Navigation and Navigable Waters
PART 20—RULES OF PRACTICE, PROCEDURE, AND EVIDENCE FOR FORMAL ADMINISTRATIVE PROCEEDINGS OF THE COAST GUARD
Subpart H—Evidence
§ 20.804 Objections and offers of proof.