Last updated: August 20, 2026
Flares are the one piece of safety equipment most boaters buy once, stow in a locker and never think about again until an inspection or an expiration date makes them think about it. Then comes the second problem, which is that expired pyrotechnic flares are hazardous waste and surprisingly hard to dispose of legally.
That inconvenience is why electronic distress lights have taken so much of this category. This article explains what visual distress signals are for, how the pyrotechnic and electronic options differ in practice, and what the Coast Guard actually accepts, with the sources so you can confirm the current rules for your own boat.
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Quick Answer
Do you need flares, or does an electronic signal count?
- Visual distress signals come in two families: pyrotechnic flares and accepted electronic devices.
- The Coast Guard accepts certain electronic visual distress signal devices as an alternative to pyrotechnic night signals.
- An electronic light on its own does not cover the daytime side; makers pair it with an orange distress flag.
- Whether your boat must carry signals at all, and which kind, is set out in the federal booklet at uscgboating.org.
Bottom line: check the current requirement for your boat at uscgboating.org, then choose between pyrotechnics and an accepted electronic device plus a day flag.
What Visual Distress Signals Are For
A visual distress signal exists to solve one narrow problem: making a small boat visible to someone who is not already looking for it. Radios and phones tell people you need help, and a signal tells them where you are, which is the harder half once a search is underway.
That is why the category splits into day signals and night signals. Daylight makes a light almost useless and makes orange smoke or a bright flag effective. Darkness reverses it. Any signal package that only covers one of the two halves leaves you carrying gear that works for part of the day.
Pyrotechnic Flares: What They Do Well
Handheld flares, aerial meteors and orange smoke are the traditional answer, and their strength is intensity. An aerial signal gets above the horizon and can be seen far beyond the line of sight from a low boat, which no handheld light does. Orange smoke is genuinely effective in daylight.
The costs are real, though. Pyrotechnics carry expiration dates, and expired units do not count toward a carriage requirement. They burn extremely hot, which is a hazard in a small boat or a life raft. Disposal is regulated, and many areas have no convenient collection point, which is how garages end up with a decade of expired flares in a coffee can.
Electronic Distress Lights: How They Are Accepted
The Coast Guard accepts certain electronic visual distress signal devices, usually abbreviated eVDSD, as an alternative to pyrotechnic night signals. These are LED units that flash a recognized distress pattern, run for hours on batteries, and carry no expiration date because there is nothing to expire.
Sirius Signal is the established maker in this category and publishes its Coast Guard approval information at siriussignal.com, including models such as the C-1002 and C-1004. The company states that its two color model meets the stricter RTCM 13200.0 standard, and it sells the devices bundled with a square orange distress flag so that the daytime side is covered as well.
The Day Flag Is Not Optional Marketing
An electronic light addresses night signaling. The orange distress flag in the same kit is what addresses daytime, and it is the reason those products ship as a pair rather than as a light alone. If you buy an electronic device secondhand without the flag, you have covered half the requirement.
Choosing Between Them
The decision usually comes down to where you boat and how you feel about maintenance. Coastal and offshore boaters often carry both, because aerial pyrotechnics reach farther than anything handheld. Inland and lake boaters increasingly go electronic, because the range advantage matters less and the expiration cycle matters more.
| Option | Covers | Upkeep | Best suited to |
|---|---|---|---|
| Aerial pyrotechnic | Night, long range | Expires, regulated disposal | Coastal and offshore water |
| Handheld flare | Night, short range | Expires, burns very hot | Close range signaling to a searcher |
| Orange smoke | Day only | Expires | Daylight search visibility |
| Electronic light plus flag | Night and day as a pair | Battery changes only | Inland and coastal day boating |
Where the Requirement Comes From
Whether your boat must carry visual distress signals, and which types satisfy the requirement, depends on vessel length and on where you operate. Those rules are set out in A Boater’s Guide to the Federal Requirements for Recreational Boats, published free at uscgboating.org, and that is the version to check.
Do not rely on a summary chart from a retailer or a forum, including a general description like this one. This category has changed in recent years as electronic devices gained acceptance, so a chart that was correct when it was printed can be wrong now.
An Accepted Electronic Kit
If you are replacing an expired set of flares, an accepted electronic distress light bundled with the orange day flag is the option that removes the expiration cycle from your safety kit entirely. Confirm the model’s current approval status on the manufacturer’s own approval page before buying.
Storing and Disposing of Signals
Signals belong somewhere dry, reachable from the helm, and known to everyone aboard. A flare in a locked console that only the owner can open is a flare nobody can use if the owner is the one in the water. Store them upright in a waterproof container and tell your passengers where they are.
For expired pyrotechnics, do not fire them off for practice and do not put them in household trash. Local fire departments, some marine dealers and periodic hazardous waste collection events are the usual routes, and availability varies by area, so check with your local fire department or waste authority for what your area accepts.
Signals Are Only Part of the Answer
A visual signal helps someone find you once they are searching. Getting the search started is a different job, handled by a radio, a phone or an emergency beacon, and by a float plan somebody ashore is holding. A sound signaling device, covered in our boat air horn guide, is the close range companion to a visual one.
Frequently Asked Questions
Can an electronic flare replace pyrotechnic flares? The Coast Guard accepts certain electronic visual distress signal devices as an alternative to pyrotechnic night signals. Makers such as Sirius Signal publish their approval details, and the devices are sold with an orange distress flag so the daytime side is covered too.
Do boat flares expire? Yes. Pyrotechnic signals carry expiration dates and expired units do not count toward a carriage requirement. Electronic devices have no expiration date, only batteries to replace.
How do I dispose of expired flares? Not in household trash and not by firing them. Local fire departments, marine dealers and hazardous waste collection events are the usual options, and what is available depends on where you live, so ask your local fire department or waste authority.
Does my boat need visual distress signals at all? That depends on vessel length and where you operate. The current requirement is published in the federal booklet at uscgboating.org, which is the source to check rather than a secondhand chart.
What is the orange flag for? It is a daytime distress signal. Electronic distress lights address night signaling, so the flag is what covers the daylight half, which is why the two are sold together.
Where should signals be stored on a small boat? Somewhere dry, reachable from the helm and known to every passenger. Signals locked in a compartment only the operator can open are useless if the operator is the person overboard.
The Bottom Line
Visual distress signals are a day problem and a night problem, and any package you buy needs to answer both. Check the current requirement for your boat at uscgboating.org, then decide between pyrotechnics for maximum range and an accepted electronic light with an orange flag for maintenance you can forget about. For how signals fit into the rest of the required gear, see our guide to required safety gear by boat length.