Information about major breakdowns, repairs, or other emergency operations with regard to weirs and (or) wicket dams, on the western rivers, may be obtained by consulting the __________.

Correct Answer: Option A — Broadcast Notice to Mariners

Broadcast Notice to Mariners (BNM) provides urgent, time-sensitive information regarding hazards to navigation, including temporary breakdowns or emergency operations at dams and weirs. While the Coast Pilot provides general information, the BNM is the primary source for immediate operational changes on Western Rivers.