Lifeboatman Exam Prep

USCG MMC Lifeboatman / Lifeboatman Limited Endorsement Guide

The Lifeboatman endorsement — formally *Proficiency in Survival Craft and Rescue Boats Other Than Fast Rescue Boats (PSC)* — is a USCG Merchant Mariner Credential (MMC) rating endorsement that certifies a mariner is competent to take charge of a survival craft or rescue boat in an emergency. Required on nearly every oceangoing commercial vessel of 100 GRT or more under 46 CFR 12.617 and aligned with STCW Regulation VI/2, Lifeboatman is one of the most common add-on endorsements for deckhands, ABs, mates, cooks, and stewards who intend to sail blue-water, coastwise tank, or any vessel operating under STCW. The Lifeboatman — Limited variant is restricted to inflatable liferafts only and is suited to mariners on smaller U.S. near-coastal vessels where davit-launched lifeboats are not carried.

Holders may be the first mate off a cruise ship boat deck at Port Everglades, an OSV AB during a Gulf of Mexico abandon-ship drill, a Jones Act tankerman on the Mississippi, or a steward on a Great Lakes ore carrier — any role where the USCG requires a qualified person in charge of lifesaving appliances. Lifeboatman is also a stacking prerequisite for most deck upgrade paths: AB Unlimited, Mate 500/1600 GRT, and any STCW officer endorsement list Lifeboatman as a base qualification. This guide walks through the exam structure, sea-service and medical prerequisites, study timeline, scoring rules, and how to prepare efficiently at MMCE.app.

Exam structure

The Lifeboatman written exam is a single module pulled from the USCG Q300 Deck Safety question bank, covering launching, recovery, and operation of survival craft; SOLAS lifesaving appliances; flares and EPIRBs; hypothermia and first-aid at sea; abandon-ship signals; rescue-boat operations; and shipboard lifesaving drills. The National Maritime Center (NMC) test blueprint is defined in the *Mariner Credentialing Program Policies* and in the MMC Exam Blueprint PDFs published at nmc.uscg.mil.

Expect roughly 35–40% of items on launching gear (gravity davits, falls, disengaging hooks, on-load and off-load release mechanisms, sheave blocks, tricing pennants), 25% on survival-at-sea (hypothermia stages, seasickness management, signaling, rationing, sea-anchor deployment), 20% on equipment inventories (SOLAS A and B packs, SARTs, pyrotechnics, TPAs, immersion suits), and the remainder on heavy-weather management and rescue-boat recovery techniques. The NMC continually refreshes Q300 items, and you will see a handful of diagram-based questions drawn from standard davit schematics.

Eligibility & prerequisites

Apply via the NMC using Form CG-719B, pay the evaluation, exam, and issuance fees (currently $100 + $45 + $95), and schedule the exam at any Regional Exam Center (REC) — Boston, Baltimore, Charleston, Miami, New Orleans, Houston, San Juan, Long Beach, Seattle, Juneau, Honolulu, Toledo, or Memphis. The REC will administer the written exam on a touchscreen terminal; the practical is done separately at the approved school that issued your PSC course completion.

Study timeline

Most candidates need 4–6 weeks of focused prep if they are active mariners already familiar with boat drills; 8–10 weeks for shoreside applicants who are new to SOLAS terminology.

Use MMCE.app adaptive mode daily (20 minutes) plus two full-length Q300 mock exams in the final week. Close your laptop 24 hours before the exam; cramming the night before reliably lowers Q300 scores by 3–5 percentage points because fatigue blunts the numeric-recall items.

What examiners look for

USCG questions are written in a distinctive style — multiple choice with four options, often with two plausible distractors and one textbook-correct answer pulled verbatim from SOLAS, the LSA Code, or a CFR citation. Review the NMC sample-exam PDFs (search "NMC deck safety illustrations" at nmc.uscg.mil) to see the phrasing and the scenario-based survival questions. Pay attention to numeric specifics: *how many* hand-flares in a SOLAS B pack (6), *how long* a parachute flare burns (≥40 seconds), *minimum* freeboard of a loaded lifeboat (≥150 mm), *liters* of fresh water per person in a totally enclosed lifeboat (3 L), and the rated capacity stamped into the lifeboat's hull. These are exactly the items NMC examiners use to distinguish prepared candidates from guessers.

Common pitfalls

Although the 90% Rules of the Road cutoff does not apply to the Lifeboatman module, it will matter the moment you stack this endorsement with an AB or Mate exam — so keep that threshold in mind if you are building a deck track at MMCE.app. Candidates who build Rules mastery early breeze through future upgrades.

Study strategy using MMCE.app

  1. Select the deck-safe module under MMC track settings — the Q300 bank becomes your primary question pool.
  2. Run a diagnostic quiz to get an IRT-calibrated starting theta; weak areas (davits, pyrotechnics, first aid) surface immediately in the per-topic breakdown.
  3. Use the AI Tutor to expand any missed item into a Claude-generated explanation with citations to the LSA Code, SOLAS III, and 46 CFR 199.
  4. Schedule three spaced-repetition (SM-2) sessions per week on flashcard decks for equipment inventories, pyrotechnic burn times, and EPIRB/SART battery replacement intervals.
  5. In the final two weeks, run full-length timed mock exams — 70 items, 3 hours, no pause — to condition your pacing. The engine will re-score theta after each attempt and adjust difficulty on future sessions.
  6. Export a study plan to Google Calendar (.ics) to keep a consistent schedule, and enable readiness notifications so you know exactly when you are above the 70% threshold on a rolling average.

Relevant publications

After you pass

The Lifeboatman endorsement is valid for 5 years and renews on the same cycle as your MMC — file CG-719B for renewal, refresh STCW Basic Training every 5 years (per the 2010 Manila amendments), and keep your TWIC current through TSA. Once you have Lifeboatman, the common upgrade path is Advanced Fire Fighting and Medical Person-in-Charge, which together unlock Second Mate and Chief Mate unlimited positions. Mariners pursuing high-speed vessels can later add Proficiency in Fast Rescue Boats (PFRB) on top of Lifeboatman, which adds reaction-time drills and hoisting procedures to your skill set. Keep CG-719S sea-time logs current each voyage so your next upgrade application moves quickly through the NMC evaluation queue — sea-service documentation disputes are the single most common cause of NMC package rejections and can delay upgrades by 60–90 days.