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Explainer

Seasonal OHV trail-pass calendar by state — four DNR season structures

Last updated: 2026-05-19

Some states sell a year-round OHV trail pass; others gate the pass to a frost-out / freeze-up season; others share the season with snowmobiles; a few default the system to closed and open it only during published permit windows. This page maps the four structures state DNRs use, the framing of an ‘annual’ pass (calendar-year vs fiscal-year vs floating), and the pitfalls that cost out-of-state riders a trip day. We do not list per-state pass prices or season dates — those move year to year, and the state DNR page is the canonical source.

The state DNR pass page is the canonical source

Pass prices, season dates, and product structures are set by the state DNR or state-parks agency and change every year. This page gives you the structural pattern so you know what to look for. The per-state grid below links each state’s DNR / DMV portal where the current calendar is posted.

Looking for the per-state classification at a glance? The 50-state OHV trail-pass matrix tags every state with its season structure, typical riding window, nonresident requirement, and DNR pass page.

What controls — DNR rulemaking and the trail-vs-pass distinction

  • Pass season is a DNR program decision, not a statute

    Citation: State DNR / state-parks rulemaking under the state OHV program enabling statute

    The OHV-trail-pass season for a given state is almost always set by the state DNR (or state-parks agency) as a program rule, not codified in the OHV statute. The enabling statute typically grants the DNR authority to set season dates by administrative rule, which the agency updates year to year. That is why a 2021 trail-pass calendar bears no necessary resemblance to a 2026 one — and why the only safe source is the current state-DNR pass page, not last year's blog post.

  • Annual passes are calendar-year, fiscal-year, or floating

    Citation: State DNR pass-issuance rule (varies)

    Annual OHV passes are framed three ways. (1) Calendar-year: January 1 to December 31 — common, but means a pass bought in late autumn is worth two months. (2) State fiscal-year: typically July 1 to June 30 — common in states whose DNR budget runs that way. (3) Floating 365-day: valid for one year from purchase date — friendliest to nonresidents but rare. The pass page on the state DNR site is the canonical source for which framing applies.

  • Trail status is not the same as pass validity

    Citation: State DNR trail-system status page (separate from pass page)

    A valid pass does not guarantee an open trail. Spring mud-out closures, wildfire closures, frost-heave repair closures, and post-storm closures all override a paid pass for the duration of the closure. State DNRs publish a separate trail-status / trail-conditions page that updates more frequently than the pass calendar. Always check both before driving to the trailhead.

  • Federal-land trails have their own permit system

    Citation: USFS Travel Management Rule (36 CFR § 212.51) + BLM RMP designations under 43 CFR Part 8340

    State trail passes do not satisfy federal-land OHV permit requirements. USFS and BLM units that allow OHV operation publish their own Motor Vehicle Use Map (MVUM) and may require a separate fee, day-use permit, or special-use authorisation. The federal calendar is independent of the state DNR pass calendar and follows its own seasonal-closure rhythm (snow, wildlife winter range, raptor nesting, etc.). See the federal-and-tribal-lands explainer for the federal layer.

Four DNR season structures

Most state OHV programs fit one of the four structures below. A few large-program states blend two (year-round in the south of the state, spring-to-fall in the high-elevation north). When in doubt, the DNR pass page’s ‘season’ or ‘dates valid’ language tells you which structure is in play.

  • 1. Year-round (no seasonal gating)

    What it looks like

    The state issues a single annual or multi-year OHV pass that is valid every day of the year. Trails open and close on a per-system basis for weather / wildlife / maintenance, but there is no statewide pass season. Common in southern and sunbelt states where there is no winter freeze-thaw cycle to gate against, and in some western trail-tourism states.

    Riding window

    Any day the trail system itself is open. Plan around per-system status, not a statewide calendar.

    How to spot it on the DNR page

    The state DNR pass page shows a single annual pass with no 'season' language; trail-status updates are per-system; no winter-only or summer-only product line exists.

  • 2. Spring-to-fall pass season (frost-out / freeze-up boundaries)

    What it looks like

    Pass validity is gated to a frost-out (spring) and freeze-up (autumn) boundary. The state opens the trail season after the ground has dried enough that OHV traffic will not rut soft soil, and closes the season before the next freeze. Boundary dates move year to year based on conditions; the DNR posts the open/close date a few weeks in advance. Common in the Upper Midwest and Northeast.

    Riding window

    Typically late spring through mid- or late autumn. Check the DNR pass page each spring — the dates are not the same as last year's.

    How to spot it on the DNR page

    The state DNR pass page contains 'season opens', 'season closes', or 'spring-trail-opening' language with a year-specific calendar callout that gets republished annually.

  • 3. Winter-shared with snowmobile season

    What it looks like

    The state operates a single winter trail pass shared between snowmobiles and OHVs configured for winter operation (track conversions, snow tires). Summer OHV operation is on a separate summer-pass cycle, or restricted to specific summer-trail systems that aren't part of the winter-trail network. Mostly relevant in heavy-snow Upper-Midwest and Northeast states; the dual-product structure exists because the winter-trail grooming program is funded by snowmobile pass revenue.

    Riding window

    Winter pass: snow-cover through spring melt; summer pass: spring through fall. Two separate purchases for year-round riding.

    How to spot it on the DNR page

    The state DNR offers both a 'snowmobile / winter-trail pass' and a separate 'summer-trail pass', with cross-eligibility rules in the fine print.

  • 4. Closure-default with permit-window carveout

    What it looks like

    The default state for the state's public OHV trail system is closed; specific date windows or specific trail segments are opened for permit-holding OHV traffic. The DNR may run organised-event permits, scheduled-week openings, or designated-season-only segments. Common in states whose OHV program is small relative to the state DNR mandate, and in states whose trail systems sit on multi-use land with non-OHV priority uses (timber harvest, wildlife refuge, watershed protection).

    Riding window

    Only inside the published open-window or event-permit period. Outside the window the system is closed regardless of pass status.

    How to spot it on the DNR page

    DNR pass page emphasises 'designated open periods', 'permitted-event windows', or 'limited-season OHV access'; pass purchase is conditional on event registration or specific date selection.

Four pitfalls when timing an interstate trip

  • Buying a pass before the system opens

    A spring-season pass purchased in March is valid for the calendar-year (or fiscal-year) it covers, but the trail system itself may not open for another six to twelve weeks. The pass purchase is not a green light to ride. Always confirm the trail-status page is showing 'open' before driving to the trailhead — and on a frost-out year, the season-open date can slip a full month from the typical date.

  • Nonresident pass is a separate product from the resident pass

    Most states sell a separate nonresident OHV trail pass — same trail-system access, different price, sometimes a different validity period (7-day, 15-day, annual). A resident pass purchased on behalf of an out-of-state friend is not a valid substitute. Check the per-state page for the nonresident-pass product and price; never assume the resident pass works.

  • Pass-cycle mismatch on a multi-state trip

    States with a fiscal-year (July-to-June) pass cycle and states with a calendar-year cycle do not align. A trip planned for the last week of June and the first week of July may require buying both years' passes in a fiscal-year state, while a calendar-year state's pass purchased that same week is still mid-cycle. Build the trip plan around the destination-state cycle, not the home-state cycle.

  • Closure overrides — fire, mud, wildlife winter range

    Fire-risk closures and mud-out closures override pass validity for the duration. Wildlife winter-range closures in mountain-west states often close specific trail segments from late autumn through late spring even where the pass season nominally permits riding. The trail-status page is the single source of truth; the pass calendar is a necessary, not a sufficient, signal.

Per-state lookup — find the current pass calendar

Each per-state page links to the canonical state DNR portal where the current pass season, pass product list, and trail-status page live. Open your destination state to find the live calendar.

Topic guides

Reference explainers and typologies that sit alongside the per-axis state atlases — vehicle category, where you can ride, by rider, and what to check before a trip.

Vehicle category & paperwork

Where you can ride

By rider

Trip planning

Related atlases & explainers