Damage Controlman

The Coast Guard Damage Controlman rating is the service's dedicated ship-survivability workforce. No other rating owns the SCBA program, the AFFF suppression system, the CO2 flooding bank, the portable extinguisher inventory, and the ship's flooding-boundary survey all at once. The DC is the person the crew depends on when the fire alarm trips at 0200 fifty miles offshore and the nearest fire department is a helicopter flight away. That weight starts accumulating from the first week you arrive at the ship. You graduated TRACEN Cape May after eight weeks and reported to a cutter, a tender, an icebreaker, or occasionally a sector unit as a non-rated Coastie striking for DC. The first month is total immersion in the ship's organization: memorizing the battle bill, learning your repair locker's number and location, finding the alternate routes from your berthing to your station in the dark. The DC chief or DC petty officer hands you the Rating Performance Qualification Standard (PQS) book the first week and tells you which lines need to be signed before A-School will be considered. That book is your to-do list for the next eight to twelve months. The daily work is unglamorous in proportion to how critical it is. You clean the damage control lockers. You inventory portable extinguishers against the PMS card. You stage SCBA cylinders and check fill levels on the recharge cascade system. You stand bilge watches during port calls and note the fluid levels in the bilge frames the chief pointed out during the compartment orientation. You go to every drill the duty section runs, and you go early, because the BM1 or DC2 who runs the drill notices who was already there versus who wandered in after the alarm. In your off-hours you are reading the DC Book — the ship-specific document that maps every compartment, every watertight boundary, every installed suppression system, and every repair-locker assignment to specific hull-casualty scenarios. The SCBA is the physical center of your rating identity. Learning to don and operate a self-contained breathing apparatus — the full sequence from mask seal check through low-air-alarm response through emergency egress with a disabled partner — is the qualification that separates a DC striker from any other non-rate on the ship. The mask that leaks in the drill leaks in the fire. The cylinder whose fill was not checked before the drill hits low-air at the worst moment. A-School at TRACEN Yorktown will formalize what you learn at the unit, but the foundation of procedural discipline — check the mask, check the cylinder, check the buddy — is established in the first year, not the second. HAZMAT awareness is layered into the non-rate DC experience from the start. Cutters work with Class B flammable liquids, cryogenic refrigerants, compressed gases, and cleaning solvents that interact dangerously in any uncontrolled casualty scenario. The COMDTINST M6240-series hazardous materials management system — SDS binders, GHS labeling, incompatible-materials segregation — is not administrative paperwork. It is the framework that keeps a fuel spill from becoming an engineroom fire and a refrigerant leak from becoming a crew incapacitation event. The DC non-rate who treats HAZMAT compliance as a check-the-box drill will eventually work for a DC2 who learned this lesson the hard way. Advancement to DC3 runs through the Servicewide Examination (SWE) — a competitive, semi-annual, multiple-choice exam administered Coast Guard-wide in March and August. The SWE bibliography for DC covers firefighting doctrine, damage control procedures, HAZMAT handling, the rating-specific technical knowledge, and the military-requirements and leadership components tested at every rating. Cutting scores vary with the cohort; pulling the current SWE bibliography from the Coast Guard Institute and building a study plan starting at the eight-month mark is not early — it is the correct timeline. BM non-rates who wait until two months before the exam are the ones who re-take it. Your EER as a non-rate is the OIC's assessment of your performance as a ship's company member. It covers professional performance, military bearing, personal readiness, and initiative. The DC2s and DC chief read it when the A-School endorsement conversation happens. The OIC reads the PQS book when writing it. The two documents are functionally linked: a non-rate with a half-finished PQS and a marginal EER does not get the Yorktown class date. A non-rate with a signed-deep PQS book, a clean EER, and a repair-locker qualification earns the endorsement letter before the next SWE cycle closes.