This student module on Coast Guard regulations applied to offshore drilling is one of 50 modules concerned with job safety and health. This module presents requirements that apply to the design, construction, equipment, inspection, and operation of offshore drilling units. Following the introduction, 10 objectives (each keyed to a page in the text) the student is expected to accomplish are listed (e.g., Characterize the ventilation requirements for mobile offshore drilling units). Then each objective is taught in detail, sometimes accompanied by illustrations. Learning activities are included. A list of references and answers to learning activities complete the module. (CT)