Offshore Boating Safety: What to Carry and What to Do When Things Go Wrong

Inshore, a problem is usually an inconvenience. Offshore, the same problem is a situation. Cell coverage fades a few miles out, other boats thin fast, and help is measured in hours, not minutes. The Coast Guard's required equipment list is a legal floor written for average recreational boating — it is not what a well-equipped offshore boat actually carries.

This guide covers two things: the gear that earns its place on an offshore boat, and what to actually do in the situations that gear exists for — a dead engine 40 miles out, weather that arrived early, water where it shouldn't be.

One note before we start: this article is educational. It is not a substitute for hands-on training. A boating safety course, a VHF radio course, and practicing your own drills will do more for you than any checklist. And regulations change — verify current U.S. Coast Guard requirements for your vessel and waters before you go.

Part 1: What to Carry Offshore

Start With the Legal Minimum — Then Treat It as a Floor

Federal requirements for a typical recreational boat include USCG-approved life jackets for everyone aboard (plus a throwable device on boats 16 feet and over), visual distress signals on coastal waters (minimum three day-use and three night-use, or combination devices), fire extinguishers, a sound-producing device, and proper navigation lights. Your state may add requirements.

Everything below goes beyond that minimum. That's the point — the minimum assumes help is nearby.

Life Jackets: The One That's On You

The Coast Guard began transitioning life jacket labels from the old "Type I–V" system to performance levels (50, 70, 100, 150) in line with international standards. Older Type-labeled jackets remain legal as long as they're serviceable. What matters offshore:

• Buoyancy appropriate to open water. For offshore work, look at Level 100/150 (or legacy Type I "offshore") jackets — higher buoyancy, and at the top level, designed to turn an unconscious wearer face-up. A watersports vest is not an offshore jacket.
• It only works if you wear it. Modern inflatable jackets are comfortable enough to wear all day, and that comfort is a safety feature — the jacket in the console locker doesn't count when you go over unexpectedly. Note that inflatables must be worn to count toward your carriage requirement, and they're not approved for non-swimmers or children.
• Equip each jacket. A whistle, a water-activated strobe or light, and reflective tape turn a flotation device into something searchers can find at night. Offshore crews add crotch straps (the jacket stays down when you're lifted) and, in rough conditions, a harness and tether so nobody leaves the boat in the first place.
• Kids and fit. Sized to the wearer, snug, zipped. An adult jacket on a child is not flotation, it's an escape hatch.

VHF Radio: Your Primary Lifeline

A fixed-mount VHF with Digital Selective Calling (DSC) is the single most important piece of communications gear aboard, and it beats a cell phone in every way that matters: it broadcasts to every vessel in range, the Coast Guard monitors it, rescuers can direction-find on it, and it doesn't care about coverage maps.

Two setup steps make DSC actually work, and most boaters skip at least one:

1. Get an MMSI number and program it into the radio. Free or low-cost through providers like BoatUS. Without it, the red distress button does nothing useful.
2. Connect the radio to GPS (or use a radio with GPS built in). A DSC distress alert with position tells rescuers who you are, where you are, and that you're in trouble — in one button press — even if you can't speak.

Carry a handheld VHF, charged, in a waterproof case as backup. If the boat's electrical system dies — or you're in a raft — the fixed mount is gone with it. Beyond VHF range (roughly 20–25 nautical miles to a coast station, less for handhelds), a satellite communicator or satellite phone stops being a luxury and becomes the only way to have a conversation with anyone.

EPIRBs and PLBs: The Gear You Buy Hoping Never to Use

Both are 406 MHz distress beacons. Activated, they alert the international Cospas-Sarsat satellite system, which routes your position to search and rescue. The differences matter:

The honest answer for an offshore boat is an EPIRB for the vessel and a PLB on each person who's on deck at night or in weather. If the budget covers only one, a GPS-equipped PLB worn on your jacket goes with you when you and the boat part company — which is precisely the scenario where a boat-mounted beacon can't help you.

Two non-negotiables either way:

• Register it with NOAA at beaconregistration.noaa.gov. It's free, it's required by law, and it's the difference between rescuers instantly knowing your boat, your emergency contacts, and your trip patterns — versus launching on an anonymous signal. Renew every two years and update it when anything changes.
• Check the battery expiry date. Beacon batteries have a replacement date on the label. An expired battery may not deliver the full transmit duration when everything depends on it.

Life Raft: The Last Resort You Maintain Like the First

Beyond swimming distance from shore — a distance that shrinks dramatically in cold water — a life raft is the difference between "abandoned ship" and "in the water."

• Size it to your crew and buy for your waters: coastal-rated rafts assume rescue within roughly 24 hours; offshore rafts (ISO 9650-1 class) are built and provisioned for longer exposure and rougher seas.
• Service it on schedule. Recreational rafts are typically repacked at manufacturer-specified intervals — commonly around every three years, annually for some valise-packed rafts. An out-of-service raft is a heavy box of unknowns.
• Mount it where you can reach it in 30 seconds with the boat heeled, dark, or on fire — not under the cockpit sole beneath 200 pounds of gear.

If it's not in the bag or on your body, it's not coming with you.

Visual Distress Signals

Carry at least the required three day / three night USCG-approved signals — and offshore, carry more than the minimum. Pyrotechnic flares expire 42 months after manufacture, so check dates at the start of every season. Aerial flares reach searchers over the horizon; handhelds and smoke are for the endgame, when a boat or aircraft is already looking your way. Electronic visual distress signal devices (eVDSDs) don't expire and are a good supplement — pair one with a day signal like an orange flag to stay compliant.

Medical Kit: Built for Hours From Help, Not Minutes

A drugstore first-aid kit assumes an ambulance. An offshore kit assumes you're the ambulance for the next several hours. Beyond the basics, it should cover:

• Serious bleeding — pressure bandages, hemostatic gauze, and a tourniquet you've practiced with. Boats are full of sharp things, hooks, and moving parts.
• Seasickness — enough for everyone aboard. A violently seasick crew member is a casualty and one less pair of hands.
• Personal prescriptions — every crew member brings double what the trip needs, in waterproof packaging, half of it in the ditch bag.
• Marine-specific problems — hook removal (wire cutters), burn dressings (engine work, sun), splinting material, sting and allergy treatment including antihistamines, and rehydration salts.
• A way to get advice — the Coast Guard can arrange medical consultation by radio. Write the procedure on a card taped inside the kit lid, because you won't remember it mid-crisis.

Check expiration dates annually, and know how to use everything in the kit — a first-aid course is worth more than a bigger bag.

The Unglamorous Rest

• Fire extinguishers — the required count is the minimum; more, mounted where fires start (galley, helm, engine space), is better. Know the expiry and service dates.
• Damage control — soft wood plugs or emergency plugs sized to every through-hull (tie one to each fitting), rescue tape, underwater epoxy, spare hose clamps, a real manual bilge pump in addition to electric ones, and a bucket. Buckets never lose prime.
• Sea anchor or drogue — keeps the bow into the seas when you've lost power (more on that below).
• Tools and spares — filters, belts, impeller, fuses, fuel treatment, and the tools to change them. A huge share of offshore "emergencies" begin life as a maintenance item.
• Water and food reserve — enough for an unplanned night out, minimum.
• Paper chart and compass — electronics fail as a set when the battery bank goes.

Part 2: When Things Go Wrong

Gear is half the job. The other half is knowing what you'll do before you have to do it. The pattern across every scenario below is the same: stabilize the situation, communicate early, and escalate before you have to.

If You Break Down Offshore

A dead engine on a calm day isn't an emergency — unless you let it become one.

1. Stop the problem from compounding. Check immediately for the causes that get worse on their own: fuel leak, water in the bilge, overheating, smoke. Rule those out first.
2. Control your drift. Note your position immediately. If you're shallow enough, anchor. If not, deploy a sea anchor or drogue from the bow — it slows your drift and keeps the bow into the waves, which keeps the boat comfortable and dry. No sea anchor aboard? Improvise one: a sturdy bucket or two cleated off the bow on strong line (run the line around the bucket, not just through the handle), a duffel bag, or even your anchor with all of its rode paid out — in water too deep to reach bottom, the hanging weight and line still create enough drag to pull the bow into the seas. It won't match a real drogue, but it beats lying beam-to. Either way, know what you're drifting toward; a boat drifting toward a shipping lane, shoal, or surf line has a deadline.
3. Troubleshoot the boring stuff. Most breakdowns are fuel (empty, contaminated, clogged filter, closed valve), electrical (battery switch, loose terminal, blown fuse), or a fouled prop. Check the simple causes methodically before declaring defeat.
4. Make the call — earlier than feels necessary. No danger, just disabled? Call your towing service (Sea Tow / TowBoatUS) or, without a membership, hail for a commercial tow. Urgent but not life-threatening — disabled and drifting toward hazard, weather deteriorating, situation degrading? That's a PAN-PAN call on channel 16, which tells the Coast Guard and every boat in range you have a problem before it's a crisis. Lives in danger? That's a Mayday.
5. Conserve the boat. Shut down nonessential electronics to save the batteries for radio and bilge pumps, keep everyone in life jackets if there's any sea running, and update your float-plan contact so a missed check-in doesn't launch a search for a boat that's fine.

If You're Caught in Severe Weather

The best severe-weather tactic is the forecast you read before you left — see our guide to planning a safe offshore trip. But forecasts have error bars, and squalls move fast. When you're caught out:

Before it hits:

• Life jackets on everyone, now — and tethers if you have them. This is the single highest-value action on the list.
• Secure the boat: stow loose gear, close hatches and ports, pump the bilge dry so you start with maximum reserve buoyancy.
• Fix your position and plan your options while you still have visibility: nearest safe harbor, nearest dangerous lee shore, sea room in every direction.
• Brief the crew: who watches for traffic and debris, who handles the radio, where everyone sits (low and centered).

In it:

• Slow down. Speed is what turns waves into impacts. Throttle back until the boat stops slamming and stays dry.
• Don't take big seas on the beam. A boat is most vulnerable side-on to breaking waves. Take head seas slightly off the bow — a few degrees off, not dead-on — and adjust throttle over each crest so you don't launch off the back. If you must change course, time the turn for a smooth spell between larger sets and turn briskly.
• Running with the seas (downwind) can be more comfortable but risks surfing into the wave ahead or taking a wave over the stern. Keep speed matched to the waves, not faster.
• If you can't make way — power too low, seas too big — deploy the sea anchor from the bow and hold on. A bow-to-the-sea boat with no engine is in far better shape than one beam-to with full power.
• In lightning, avoid being the tallest thing around; keep the crew low, centered, and away from rigging and antennas.

If You're Taking On Water

1. Find it fast. Send someone below immediately — the leading suspects are hose failures at through-hulls, a failed stuffing box, or hull damage from an impact.
2. Slow it down. Close the seacock if it's a plumbing failure; drive in a soft plug or emergency plug if a fitting has failed. Anything wedged and backed with pressure — a cushion, a sail bag, a crew member's back — buys time on a breach.
3. Get every pump running — electric, manual, and the bucket brigade. Sometimes heeling the boat or a change of speed lifts the damage closer to the waterline.
4. Call early. Flooding you're keeping up with is a PAN-PAN. Flooding that's gaining on the pumps is a Mayday — and the time to say so is while the radio still has power and you can still speak calmly.

If Someone Goes Overboard

• Shout "man overboard," point, and never stop pointing. One crew member's only job is to keep eyes and a pointing arm on the person — a head in waves disappears from view in seconds.
• Throw flotation immediately — the throwable, cushions, anything that floats marks the spot and helps the swimmer.
• Press the MOB button on the chartplotter and get the boat turned around, approaching the person from downwind or down-current, engine in neutral at pickup.
• Getting them back aboard is the hard part — boarding ladder, swim platform, a looped line, or a lifting tackle for an exhausted or heavy person. If you've never rehearsed recovering a person (or even a fender) at sea, do it this season. It's the drill that pays off most.
• In cold water, speed matters more than most boaters realize. Cold shock steals your breathing in the first moments; within minutes, hands and limbs stop working well enough to grab a line or hold on. The "1-10-1" memory aid — one minute to get breathing under control, roughly ten minutes of useful movement, about an hour before hypothermia takes consciousness — is a simplification, and actual times vary widely with temperature and clothing. The lesson stands: flotation on the person, and fast recovery.

If There's a Fire

• Cut what feeds it: fuel valve, battery switch, blower off. For an engine-space fire, don't fling the hatch open and feed it oxygen — use a fire port if fitted, or crack the access just enough for the extinguisher.
• Position the boat so smoke and flames blow away from the crew and the rest of the vessel.
• Fight it with everything, from upwind, aiming at the base — but decide early when you're losing. A fire you can't control within the first minutes is a Mayday and a raft launch, not a longer fight.

If It's a Medical Emergency

Stabilize with your kit and training, then get help on the line early: a DSC alert or a Mayday or PAN-PAN — severity decides which — on channel 16. The Coast Guard can connect you with medical guidance and will help you decide between an evacuation and an escorted run in. Have ready: the patient's age, symptoms, medications, what happened, and your position. This is also the moment the satellite communicator earns its subscription — a two-way conversation with a doctor beats improvising.

If You Have to Abandon Ship

The rule every offshore sailor learns: step up into the raft. Crews have been lost abandoning boats that were later found afloat — the boat, even crippled, is bigger, more visible, and better protection than a raft. You abandon when the boat is genuinely leaving you (fire you can't fight, flooding you can't stem), not before.

When it's time: Mayday with position while the radio works, activate the EPIRB and leave it on, everyone in life jackets and warm layers, launch the raft on its painter to leeward, take the ditch bag, board dry if humanly possible, tie off to the boat until it actually goes down, and stay together. Then your job becomes one thing: being findable — beacon transmitting, signals ready, everyone conserving heat.

The Common Thread

Look back across those scenarios and the same three moves appear every time:

1. Flotation on people, early. Almost every offshore fatality statistic bends around one variable: whether the life jacket was on.
2. Communicate before you must. Position noted, PAN-PAN early, escalate without ego. Nobody has ever regretted the call made too soon.
3. Decisions get made before the trip. The raft's mounting spot, the MMSI programming, the beacon registration, the man-overboard drill, the float plan filed with someone ashore — all of it happens at the dock. Offshore, you just execute.

And the cheapest safety equipment of all is the decision to not go, or to come home early. Most bad days offshore were visible in the forecast before the lines came off the dock. Know your weather window, watch how conditions are trending against the forecast while you're out, and treat a deteriorating trend as information, not an insult.

Nothing in this article — and no app, including ours — replaces required safety equipment, sound seamanship, or formal training. Check current U.S. Coast Guard carriage requirements for your vessel, and consider a boating safety course; free vessel safety checks are available through the USCG Auxiliary.