U.S. regulations require that all oil spills in United States waters be reported immediately. Who is this report made to?

Correct Answer: Option A — U.S. Coast Guard

33 CFR 153.203 and the Federal Water Pollution Control Act mandate that any discharge of oil into U.S. navigable waters must be reported immediately to the National Response Center, which is operated by the U.S. Coast Guard. This ensures a coordinated federal response to mitigate environmental damage.