Question 3584 Deck General

The correct answer is B) 24 months. Certificates of Inspection (COIs) for offshore drilling units are issued for a period of 24 months, as per the regulations outlined in 46 CFR 107.211. This regulation states that COIs for mobile offshore drilling units must be renewed every 24 months. The other answer choices are incorrect because 12 months (A) is too short, 36 months (C) and 48 months (D) are too long for the required COI renewal period for these types of offshore drilling units.