IRP in Small States, Plus Alaska and Hawaii

The state-by-state guides in this knowledge base cover the large IRP programs with online portals and published manuals. These eight are different. Six of them run apportioned registration out of very few offices, sometimes with no online system and almost nothing published. The other two are not in the International Registration Plan in the first place.

That makes this a page about where the usual advice breaks down. Where a state does not publish something, this page says so rather than guessing — which is more useful than a confident answer that turns out to be wrong at the counter.

Alaska and Hawaii are not IRP members

This is the single most important fact on the page, because it invalidates the normal assumption. The International Registration Plan has 59 member jurisdictions: the 48 contiguous states, the District of Columbia, and 10 Canadian provinces. The word doing the work there is "contiguous." Alaska and Hawaii are both outside the plan, as are the Northwest Territories, Nunavut and Yukon.

So there is no apportioned registration to apply for in either state, and no apportioned plate that covers operation in them. An Alaska- or Hawaii-based operation cannot use IRP to cover its other states the way a Lower 48 carrier would; a mainland carrier cannot add either one to its apportioned fleet. In practice that means registering in-state separately, at full state rates, or operating on a trip permit.

Geography makes this less disruptive than it sounds — no truck drives between Hawaii and another jurisdiction, and Alaska connects to the Lower 48 only through Canada. But it catches out carriers who assume every state must be an IRP jurisdiction, and it is the reason neither state appears in the apportioned-registration guides.

Federal tax is unaffected either way. Form 2290 applies in Alaska and Hawaii exactly as it does everywhere else — IRP membership and Heavy Vehicle Use Tax are separate systems that happen to meet at the registration counter.

Hawaii also has no statewide DMV

On top of being outside IRP, Hawaii has no statewide Department of Motor Vehicles at all. Vehicle registration is handled by the four county finance departments, so which office you deal with depends on the island.

Two consequences follow. Counties may run registration on a staggered basis rather than one statewide date, under section 286-51 of the Hawaii Revised Statutes. And there is a weight tax layered on top of registration: the state vehicle weight tax under HRS section 249-33 is a flat $300 a year for vehicles over 10,000 pounds net weight, and although it is a state tax it is levied and collected by the county director of finance, together with a separate county weight tax that varies by island.

Wyoming: the best-documented of the group

Wyoming is the exception to this page’s theme — WYDOT publishes a full motor carrier manual and runs an online system for apportioned registration, and its guidance on Form 2290 proof is more detailed than most large states, explicitly addressing electronic filing watermarks and what to do when the VIN on your Schedule 1 does not match.

The distinctive mechanic is the renewal cycle: Wyoming staggers IRP renewals quarterly rather than using one common expiration date. And the manual warns that no temporary registration authority will be issued to cover a late renewal — so missing your quarter is not something a temporary permit will paper over.

Vermont: one office, and an unusual Form 2290 claim

Vermont processes IRP at a single location — the Commercial Vehicle Office at the Montpelier DMV. There is no online IRP portal; the state’s general online services do not cover it, though trip permits can be obtained online. Renewals are staggered, with the registration year expiring on the last day of the month preceding the original registration.

Vermont’s manual also makes a claim no other state in this group makes: that the IRS authorized the Vermont DMV to accept Heavy Vehicle Use Tax returns on the IRS’s behalf, forwarding them onward, and to accept a copy of the Form 2290 as proof of tax paid — which would let a carrier register before filing. That is what Vermont’s current manual says. Because IRS walk-in acceptance arrangements have been wound back broadly in recent years, confirm with the Vermont Commercial Vehicle Office before relying on it.

Vermont is also strict about the proof itself: an application will not be processed unless accompanied by the required proof of payment or exemption. The state additionally applies its own purchase and use tax to vehicles being registered, with a cap for heavier trucks.

Maine: continuous registration, and the town gets paid first

Maine frames its IRP as a continuous registration with no grace period — a phrase worth taking literally, because it removes the informal cushion carriers rely on elsewhere. Maine runs an online motor carrier system for apportioned work.

The local wrinkle is the excise tax. Maine municipalities collect vehicle excise tax, and the original paper receipt has to reach the state before plates are issued — a copy or a scan does not move the process along. Carriers who handle everything else online get caught by that one physical document.

One caveat on Maine’s published guidance: the state’s IRP manual carries a 2016 revision date and predates the online portal it describes, with contact details that disagree with the current web pages. Trust the live pages over the manual where they conflict.

Delaware: the strictest new-account process here

Delaware’s requirements for establishing an IRP account are the most demanding of the six. The state requires proof of an established place of business in Delaware, and it verifies that with physical mail: two original postmarked envelopes, presented at a scheduled appointment. Virtual offices, shared addresses and agent addresses are explicitly not accepted.

For owner-operators, missing Form 2290 documentation does not get a follow-up request — the application is returned. Prepare the full package before the appointment.

Delaware does not publish whether its IRP renewals run on a common expiration date or are staggered, and no official source we could find states it. Ask when you open the account rather than assuming either pattern.

New Hampshire and Rhode Island: call, do not rely on the website

These two publish the least of any state in this group, and the honest advice is to treat their websites as a starting point rather than an answer.

New Hampshire processes apportioned registration at very few locations statewide, and it is a municipality-first state — town or city fees are paid before the DMV can process the registration, which surprises carriers used to a single state transaction. New Hampshire does not publish its IRP renewal cycle: state law leaves the expiration month to be set administratively by the DMV director rather than fixing it in statute. As a historical curiosity, that statute still contains conditional language about what happens "should New Hampshire become a member of the IRP" — wording left in place long after the state joined.

Rhode Island’s entire published IRP presence is a single short page. It does not mention Form 2290 at all, states no renewal cycle, lists the IRP office at a different address from DMV headquarters, gives a contact email on a non-state domain, and — on a page stamped as updated in April 2026 — links to a portal address that was not resolving when we checked it. None of that means the program does not function; it means the website is not a reliable guide to it. Phone the IRP office before making the trip.

A cross-state observation worth carrying: not one of the six IRP states on this page was confirmed to use a single fixed common expiration date for renewals. Carriers often assume small states must run everything on one annual date — check yours rather than assuming.

What does not change in any of them

Whatever each state does with registration, the federal layer is identical everywhere: Form 2290 is due for vehicles with a taxable gross weight of 55,000 pounds or more, the tax period runs July 1 through June 30, returns for vehicles in service in July are due by August 31, and vehicles first used later in the period are due the last day of the month following first use.

The stamped Schedule 1 remains the proof of payment that registration offices ask for — including in Alaska and Hawaii, where there is no IRP to apportion into but the federal tax applies exactly as it does in the Lower 48.

Frequently asked questions

Which states are not part of the International Registration Plan?⌄

Alaska and Hawaii. IRP has 59 member jurisdictions — the 48 contiguous states, the District of Columbia and 10 Canadian provinces — so the two non-contiguous states are outside it, along with the Northwest Territories, Nunavut and Yukon. Apportioned plates cannot cover operation in Alaska or Hawaii, and neither can be added to an apportioned fleet.

Is Alaska part of the International Registration Plan?⌄

No. Alaska is not an IRP member jurisdiction, so apportioned plates cannot cover Alaska operation. Carriers register in Alaska separately or operate on a commercial trip permit. The Form 2290 obligation is unchanged — a 55,000-pound-or-more vehicle still files and still needs its stamped Schedule 1.

Where do I register a heavy truck in Hawaii?⌄

With your county, and not through IRP — Hawaii is not an IRP member. Hawaii has no statewide DMV either: the four county finance departments handle vehicle registration. Counties may stagger renewals under HRS 286-51, and a state vehicle weight tax of a flat $300 a year applies to vehicles over 10,000 pounds net weight, levied and collected by the county director of finance alongside a separate county weight tax.

When do IRP registrations renew in these states?⌄

It varies among the six IRP states here, and two of them do not publish it. Wyoming staggers renewals quarterly. Vermont staggers by original registration month. New Hampshire leaves the expiration month to the DMV director rather than fixing it in statute, and Delaware does not state its cycle publicly. Confirm with the jurisdiction rather than assuming a common expiration date.

Why is there so little information on the Rhode Island and New Hampshire IRP programs?⌄

Both publish very little online — Rhode Island’s IRP presence is a single page that does not mention Form 2290 and links to a portal address that was not resolving when checked. The programs function; the websites just are not a reliable guide. Call the IRP office before travelling to it.

Does Vermont really accept Form 2290 on behalf of the IRS?⌄

Vermont’s current IRP manual says the IRS authorized it to accept Heavy Vehicle Use Tax returns and forward them, and to accept a copy as proof of payment. That is the agency’s own published wording, but IRS walk-in acceptance programs have been reduced in recent years — confirm with the Vermont Commercial Vehicle Office before planning around it.

Related guides

Official sources

Agency rules, fees and contacts can change — confirm current requirements with the agency before acting. This guide is general information for truckers, not tax or legal advice.

IRP in Smaller-Program States, Plus Alaska and Hawaii