46 CFR 176.100 bars a covered vessel from operating without a valid certificate aboard
The rule is short and carries no exception for private events. A vessel to which the subchapter applies may not be operated without having on board a valid U.S. Coast Guard Certificate of Inspection. Under 46 CFR 176.103 the certificate also sets minimum manning and permitted routes.
Read the route line as closely as the capacity line. A certificate limited to Lakes, Bays and Sounds does not authorize an ocean voyage three miles offshore. The certificate runs five years, per the Coast Guard Sector New York guide, with four annual inspections within 90 days before or after the anniversary date. No extension of the expiration date is allowed, so ask for that date in writing.
The capacity figure is built from 30 inches of rail, 10 square feet of deck and 18 inches of seat
46 CFR 176.113 sets how the maximum is computed, and the inspector takes whichever of three methods yields the greatest number. One passenger for each 760 millimeters, or 30 inches, of rail space at the periphery of each deck. One passenger for each 0.9 square meters, or 10 square feet, of deck area available to passengers. One passenger for each 455 millimeters, or 18 inches, of fixed seating width.
Criteria may be combined across decks, but rail length may not be combined with deck area or fixed seating on the same deck. Since 1 December 2011 the calculation assumes 185 pounds per person. The number will not move on the day. An operator offering to squeeze in five more is offering to break 46 CFR 176.113 and 46 CFR 176.100 at once.
150 passengers is the line between Subchapter T and Subchapter K
46 CFR 175.110 applies Subchapter T, 46 CFR Parts 175 through 187, to a vessel of less than 100 gross tons carrying 150 or fewer passengers, or with overnight accommodations for 49 or fewer. For a wedding charter the further condition that bites is carrying more than six passengers including at least one for hire. 46 CFR 114.110 applies Subchapter K above 150 passengers, or above 49 overnight, and imposes heavier construction, stability, fire protection and lifesaving standards.
The definition that triggers all of it sits in 46 CFR 175.400. A passenger for hire is one for whom consideration is contributed as a condition of carriage, flowing directly or indirectly to the owner, charterer, operator or agent. Pay a charter fee and every guest aboard is a passenger for hire, because the money reached the operator indirectly. One is enough to pull the vessel into inspection.
That is also the answer to the friend with a boat. Thirty guests aboard an uninspected vessel where everyone chips in is very likely an illegal passenger for hire operation. Above six passengers you need an inspected vessel, and there is no wedding exception. Long Island capacities cluster just under 150 for that reason.
No Long Island operator we checked publishes a certificate of inspection number
We looked for a published capacity figure tied to an actual certificate and did not find one. Operators publish marketing capacities. None of the operators we checked posts the certificate itself, and a marketing capacity carries no federal weight.
The federal databases do not close the gap. The Coast Guard Port State Information eXchange at cgmix.uscg.mil publishes boarding, examination and inspection results, and it does not reliably publish certified passenger capacity as a searchable field. Search it anyway, by vessel name, using a distinctive fragment, because the legal name often differs from the charter brand. It confirms the vessel exists and is in service, and carries the deficiency history.
Ask for a photograph of the certificate, then call Sector New York at (718) 354-4008
The simplest verification is the strongest. Ask the operator to send a photograph or a PDF of the vessel current Certificate of Inspection. It has to be aboard under 46 CFR 176.100, so producing it costs a minute. Refusal is the loudest warning sign here.
Read three things off the document: the expiration date, the maximum passengers and total persons, and the route it authorizes.
If the operator will not send it, call the office that issued it. United States Coast Guard Sector New York sits at 212 Coast Guard Drive, Staten Island, New York 10305, telephone (718) 354-4008. It is the Officer in Charge, Marine Inspection for Long Island waters, and can confirm whether a named vessel holds a current certificate, and for what number and route.
A licensed captain and an inspected vessel are two separate certificates
Two different things get sold as one. A Coast Guard licensed captain is a person holding an officer endorsement on a Merchant Mariner Credential. A Coast Guard inspected vessel is a boat holding a Certificate of Inspection. 46 CFR 15.515 requires both, since no vessel subject to inspection under 46 U.S.C. 3301 may be navigated unless an individual holding that endorsement has direction and control.
The blur matters because a six passenger boat can have a fully licensed captain and no certificate at all. Vessels carrying six or fewer passengers are uninspected, though a chemical drug testing program is still required. So ask the question that cannot be dodged: is the vessel inspected and certificated, and for how many passengers?
46 CFR 15.515 keeps the required crew aboard even when the boat is tied to the dock
The regulation is unusually explicit. Any time passengers are embarked on a passenger vessel, the vessel must have the crew complement required by the certificate, whether the vessel is underway, at anchor, made fast to shore, or aground.
That clause catches wedding plans. A dockside cocktail hour aboard an inspected vessel, with the crew sent home to trim the bill, is a violation. The crew requirement follows the passengers, not the propeller. Manning scales with the certificated passenger number, and most Subchapter T boats need at least one crew member besides the master.
No enforceable accessibility standard exists, and the 2013 guidelines are still a proposal
There are no final federal accessibility standards for passenger vessels. The U.S. Access Board issued proposed Passenger Vessels Accessibility Guidelines on 25 June 2013, and they have never been adopted. The notice says as much: operators would not be required to comply until the Department of Transportation and the Department of Justice adopt them as standards.
Even the proposal would miss most Long Island wedding boats. It would reach vessels permitted to carry more than 150 passengers, ferries above 99 and tenders above 59, and it excludes smaller vessels. That threshold is the same 150 that divides Subchapter T from Subchapter K, which is one more reason charter boats certificate just under it.
A vessel open to the public is still a place of public accommodation under ADA Title III, so an operator may not refuse service on the basis of disability. But no technical standard requires an accessible gangway, an accessible restroom, an elevator between decks or accessible seating. Ask about the gangway angle at high tide and at low tide, because tide moves it during the event.
Sources: 46 CFR Part 176 Subpart A, Certificate of Inspection · 46 CFR 176.103, Description · 46 CFR 176.113, Passengers permitted · 46 CFR 175.110, general applicability of Subchapter T · 46 CFR Part 175, definitions including passenger for hire · 46 CFR 114.110, general applicability of Subchapter K · 46 CFR 15.515, Compliance with certificate of inspection · USCG Sector New York, Small Passenger Vessel Guide · USCG Port State Information eXchange vessel search · USCG CGMIX Overview · Passenger Vessels Accessibility Guidelines, 78 Federal Register, 25 June 2013 · U.S. Access Board, Passenger Vessels · ADA Title III regulations
Read on 10 September 2026. Statutes and regulations change; confirm with the clerk or agency before you rely on this.
