{"data":{"id":"us/50-cfr-228.18","jurisdiction":"us","citation":"50 CFR 228.18","heading":"Cross-examination.","body":"(a) The presiding officer may:\n(1) Require the cross-examiner to outline the intended scope of the cross-examination;\n(2) Prohibit parties from cross-examining witnesses unless the presiding officer has determined that the cross-examiner has an adverse interest on the facts at issue to the party-witness or the party presenting the witness. For the purposes of this subsection, the Assistant Administrator's or his or her representative's interest shall be considered adverse to all parties;\n(3) Limit the number of times any party or parties having a common interest may cross-examine an “adverse” witness on the same matter; and\n(4) Exclude cross-examination questions that are immaterial, irrelevant or unduly repetitious.\n(b) Any party shall be given an opportunity to appear, either in person or through an authorized counsel or representative, to cross-examine witnesses. Before cross-examining a witness, the party or counsel shall state his or her name, address and occupation. If counsel cross-examines the witness, counsel shall state for the record the authority to act as counsel. Cross-examiners shall be assumed to be familiar with the direct testimony.\n(c) Any party or party's counsel who fails to appear at the hearing to cross-examine an “adverse” witness shall be deemed to have waived the right to cross-examine that witness.\n(d) Scientific, technical or commercial publications may only be utilized for the limited purposes of impeaching witnesses under cross-examination unless previously submitted and introduced in accordance with these regulations.","path":["Title 50—Wildlife and Fisheries","CHAPTER II—NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE","SUBCHAPTER C—MARINE MAMMALS","PART 228—NOTICE AND HEARING ON SECTION 103(d) REGULATIONS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-50.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:39Z","sha256":"34100916af05d955ee02ea3a3fe9617cd2e99483d546e104d8c6c05f58486349","source_id":"us-cfr","stale":true,"prev":"us/50-cfr-228.17","next":"us/50-cfr-228.19"},"notice":"GroundRules: Original legal text. Not legal advice."}