Question 3428 Deck General

The correct answer is B) over the Outer Continental Shelf and on waters under the jurisdiction of the United States. The requirements for obstruction lights on mobile offshore drilling units are governed by the Code of Federal Regulations (CFR), specifically 33 CFR 67.05-1, which states that these requirements apply to "all navigable waters of the United States, including the Outer Continental Shelf." This means the obstruction light requirements cover all waters under the jurisdiction of the United States, including the Outer Continental Shelf. The other options are incorrect because they do not accurately reflect the full scope of the regulations. Option A is too narrow, as the requirements apply beyond just the waters covered by the International Rules of the Road. Option C refers to a specific act that does not define the geographic area covered by the obstruction light requirements. Option D is also too narrow, as the requirements are not limited to just the waters defined by the U.S. navigational rules.