What's the youngest age my kid can legally ride an ATV unsupervised?

The floor varies by state — most state codes set unsupervised public-land operation at 16, several at 14, and a few at 18. A handful of states (notably Alabama, Alaska, and Mississippi) do not codify a minimum operating age, which means there is no state-statute prohibition but parental judgement is still the operative standard. The quick-reference matrix above lists each state's unsupervised threshold and the exact code citation; the per-state page links to the canonical DNR / DMV portal.

Do I have to be physically present when my child rides on public land?

In most states, yes — below the unsupervised age, an accompanying adult must be present, and several states make the standard explicit (visual contact, within a stated distance, or on a separate machine). The supervised-minor age in the matrix is the floor at which a state allows public-land operation with supervision; below that floor, public-land operation is generally not permitted at all. Private-property carveouts are common: many state OHV statutes write the age and supervision rules around public OHV land and exempt the landowner's family on the owner's own property. The per-state note flags which states apply a private-land carveout.

Is a safety course required for a 12-year-old?

Roughly half the states require a state-approved ATV safety course for minor operators on public land — typically the ATV Safety Institute (ASI) RiderCourse or a DNR-administered equivalent. The age range covered varies: some states require it for any operator under 16, others for any operator born after a cutoff year. Where required, the certificate of completion must usually be carried while riding. The matrix above flags every state with a safety-course requirement; click through to the per-state page for the exact citation and the ASI registration link.

What engine size is right for a 10-year-old?

Six states write engine-size tiers into the OHV code — Kentucky, New Hampshire, New Jersey, North Carolina, Texas, and Virginia. The common floor is 70cc for riders age 11 and under, 90cc for riders 12–15, with 110cc the next-tier upper bound in some states (NH caps the youngest tier at 95cc instead of 70cc). Even in states with no codified tier, the industry-standard CPSC / ANSI guidance lines up with the same age bands. As a parental-decision floor: a 10-year-old beginner is generally on a 70cc-class youth ATV (Honda TRX90X, Yamaha YFZ50 / YFZ90, Polaris Outlaw 70). Anything 110cc-and-up is usually written for ages 12+ regardless of state.

Does my kid need a helmet on a youth ATV?

Yes in nearly every state — the helmet rules apply at least to riders under 16 or 18 on public land regardless of how powerful the machine is, and a youth ATV is not exempt because of its engine size. Eye protection is also required in many states. The helmet axis is covered in the helmet atlas — open that page for the per-state requirement tier and any passenger / private-land carveouts.

Can my kid ride my UTV / side-by-side instead of an ATV?

Most state OHV codes apply the same age and supervision rules to a UTV / side-by-side as to an ATV because both fall under the umbrella OHV definition. A few states split the two — for example, treating a UTV operator-with-passenger under a different supervision standard, or requiring a separate seat-belt-and-roll-cage standard that interacts with passenger age. The minimum-passenger-age rule for a side-by-side is usually that the child can sit upright and reach the seat belt and handhold without slack — a 4 or 5-year-old typically cannot, even on a machine the state would let them ride at 6. The per-state note flags any state that draws a UTV-vs-ATV distinction.

Where can I find an ASI ATV RiderCourse near me?

The ATV Safety Institute (asi.svia.org) maintains the canonical course schedule for the US — search by zip code for the nearest hands-on course. Many state DNRs subsidise or reimburse the course fee for resident minors; the per-state page links the operative state DNR program. Online-only safety-course completion is accepted in some states for first-time-rider certification but not all — confirm before relying on an online completion certificate.

Atlas · Parental decision

Kids’ ATV laws by state — minimum ages, engine-size limits, safety-course requirements

Last reviewed 2026-05-29

The three questions parents ask before putting a child on an ATV — what’s the legal age in our state, is the engine size capped for this age, and does the state require a safety course — answered state by state from each state’s OHV code, alongside the CPSC / ANSI / SVIA engine-size guidance the industry actually uses.

Not legal or safety advice

This page summarises state minimum-age, supervision, engine-size, and safety-course rules from each state’s OHV code, and the industry-standard CPSC / ANSI / SVIA engine-size guidance. It is not legal advice, and it is not a substitute for parental judgement on whether a specific child is ready to ride a specific machine. State codes change; confirm the cited section against current statute and your child’s ability before riding.

What controls — state code, CPSC standard, and ASI course

Every state writes its own minor-operator rule
Citation: State OHV / OHRV / off-highway code chapter (varies)
There is no federal minimum age to operate an ATV. Each state writes its own rule inside the off-highway-vehicle code chapter — typically the same chapter that defines registration and helmet rules. A handful of states leave the age blank entirely; the rest set an unsupervised floor (commonly 16) and a separate supervised-minor age below that. Read the state code section rather than relying on the dealer or trail map for the answer.
CPSC + ANSI youth-ATV engine-size guidance
Citation: ANSI / SVIA 1-2017 — Four-Wheel All-Terrain Vehicles (CPSC-incorporated)
The Consumer Product Safety Commission incorporates the ANSI / SVIA 1 voluntary standard for youth ATVs by reference. The standard sets manufacturer age recommendations (Y-6+: ≤70cc, Y-10+: ≤90cc, Y-12+: ≤110cc, Y-14+: ≤125cc) and these labels appear on every new youth ATV sold in the US. State codes that codify engine-size tiers track the ANSI / SVIA floor; states without a codified tier still see the manufacturer label as the operative parental-decision input. Buying a 250cc machine for an 8-year-old is permitted in most states, but it falls outside the ANSI / SVIA age-graded standard the industry actually publishes.
ASI ATV RiderCourse is the de facto safety standard
Citation: ATV Safety Institute (asi.svia.org) — RiderCourse hands-on training
The Specialty Vehicle Institute of America's ATV Safety Institute publishes the RiderCourse — a hands-on training program that most state DNRs adopt as the qualifying safety-course standard for minor operators. Where a state requires a safety course, the operative requirement is almost always the ASI RiderCourse or a state-administered course that mirrors its curriculum. Many DNRs subsidise or reimburse the course fee for resident minors. Online safety modules satisfy the requirement in some states but not all.
Public land vs private property is a recurring split
Citation: State OHV code public-property scope sections + private-land carveouts
Most state OHV codes write the age and safety-course requirements around operation on public OHV land, public trails, and any place open to the public. Several states explicitly carve out the landowner's family riding on the owner's own private property — the age rule, supervision standard, and safety-course requirement do not apply when riding on family-owned land. The carveout is not universal; a few states apply the same age rule everywhere. The matrix below flags which states carry the private-land carveout.

Three questions a parent answers before buying or riding

The matrix below answers the same three questions for every state. Read them as a decision sequence: age first, engine size second, safety course third. A state may answer one question with silence (no codified rule) and another with a strict statutory cap — the per-state row tells you which.

1. What's the state minimum age?
Matrix axis · Min age unsupervised · Supervised-minor age
The matrix lists each state's unsupervised public-land operation floor and the supervised-minor age below it. Below the supervised-minor age, public-land operation is generally not permitted regardless of supervision — that is the floor for putting a child on a public OHV trail. Above the unsupervised age, a state-issued OHV registration (in states that require one) and the helmet rule attach but the supervision standard drops away.
2. Is there an engine-size cap for my child's age?
Matrix axis · Engine-size tier
Six states codify engine-size tiers by age — the common pattern is ≤70cc up to age 11, ≤90cc up to age 15. Where a state codifies a tier, exceeding it is a state-code violation regardless of whether the child can mechanically operate the larger machine. Even where a state does not codify a tier, the ANSI / SVIA 1 manufacturer age recommendation (Y-6 / Y-10 / Y-12 / Y-14 labels) is the industry-standard floor.
3. Is a safety course required?
Matrix axis · Safety course required
Roughly half the states require an ASI RiderCourse or a state-administered equivalent for minor operators on public land. Some states require the same course for any operator born after a cutoff year. Where required, the certificate of completion is the operative document — riders without it can be cited even when they are old enough to ride. The matrix flags which states require a course and the per-state page carries the citation.

Engine-size primer — what 50 / 70 / 90 / 110cc means for a kid’s first ATV

The CPSC incorporates the ANSI / SVIA 1 voluntary standard by reference — youth ATVs sold in the US carry an age-graded label (Y-6, Y-10, Y-12, Y-14) tied to a manufacturer engine-size ceiling. Six states codify a parallel cap inside the OHV code (Kentucky, New Hampshire, New Jersey, North Carolina, Texas, Virginia). The five tiers below are how the industry segments the market and where the state-code caps land relative to it.

≤ 50cc · Y-6+
Ages 6 to 9
What it is
Single-cylinder, automatic-clutch, typically electric-start. Engine ceiling on the ANSI / SVIA Y-6 label. Throttle-limit screw allows a parent to cap top speed below the machine's mechanical maximum.
Example machines
Yamaha YFZ50, Polaris Outlaw 50, Can-Am DS 70 (CVT), Suzuki QuadSport Z50.
Parental note
The starter tier — designed for supervised, slow-speed riding on flat ground or a family trail loop. No state codifies a 50cc cap explicitly, but the Y-6 manufacturer label is the parental-decision input. Throttle-screw down for first rides.
≤ 70cc / 90cc · Y-10+
Ages 10 to 11
What it is
Slightly more displacement and seat height. Automatic transmission. Most state-codified engine-size tiers cap the 11-and-under band at this displacement — Kentucky, North Carolina, Texas, and Virginia all use a 70cc-or-less floor for the youngest band.
Example machines
Honda TRX90X, Yamaha YFZ90, Polaris Outlaw 70 / 90, Can-Am DS 90.
Parental note
The most common 'first real ATV' band. State codes that cap engine size for this age treat 70cc as the operative ceiling. NH is the outlier — its statute uses 95cc instead of 70cc for the under-12 band (RSA Ch. 215-A).
≤ 110cc · Y-12+
Ages 12 to 15
What it is
Larger frame, taller seat, more aggressive suspension travel. Several state codes cap this band at 90cc (Kentucky, New Jersey, North Carolina, Texas, Virginia). The 110cc label is the manufacturer / ANSI ceiling for the Y-12 age band.
Example machines
Honda TRX90X (lower end), Suzuki QuadSport Z90, Polaris Outlaw 110, Yamaha Raptor 90.
Parental note
The transition band — kids in this range often outgrow a 70 / 90cc machine quickly but state codes may still cap them at 90cc. Where the state caps at 90cc, the practical purchase decision is to buy slightly above the lower band rather than push into 110cc territory until the rider turns 16.
≤ 125cc · Y-14+
Ages 14 to 15
What it is
Bridge band between youth and adult-class machines. ANSI / SVIA caps the manufacturer recommendation at 125cc for the Y-14 age band. No state codifies a 125cc tier — the cap is industry-standard, not statutory.
Example machines
Yamaha Raptor 125, Polaris Outlaw 110 / 125, Honda TRX125 (legacy).
Parental note
A 14-year-old can mechanically operate an adult 250cc-class machine, but the ANSI / SVIA recommendation caps the Y-14 band at 125cc for crash-energy reasons. The state code rarely reaches this band — the operative restriction is the manufacturer age label.
Adult-class 250cc+ · 16+
Age 16 and up
What it is
Adult-class ATVs (250cc and up) and full-size UTVs / side-by-sides. State codes treat 16 as the universal unsupervised-operation floor regardless of displacement; helmet, safety-course, and registration rules attach the same way for any operator above this age.
Example machines
Honda TRX250X / TRX450R, Yamaha Raptor 700, Polaris Outlaw 525, full-size Can-Am Renegade.
Parental note
Once a rider reaches the state unsupervised age, the engine-size question becomes a mechanical-fit decision rather than a state-code question. Seat height, reach to controls, and crash-energy weight class are the operative axes.

Kids’ ATV rules — verified state matrix

50 of 50 states · complete coverage

Every cell is sourced from each state’s OHV / OHRV / off-highway code chapter. “Min age unsupervised” is the youngest age a rider may operate on public land without an accompanying adult; a dash means the state does not codify a minimum (parental judgement is the operative standard). “Supervised-minor age” is the floor for supervised public-land operation. “Engine-size tier” appears only for states that codify a cap; states without a tier still see the ANSI / SVIA manufacturer label as the operative floor.

State	Min age unsupervised	Supervised-minor age	Safety course	Engine-size tier	Private-land carveout
Alabama(AL)	—	—	—	—	Yes
Alaska(AK)	—	—	—	—	—
Arizona(AZ)	—	—	Required	—	—
Arkansas(AR)	12	—	—	—	Yes
California(CA)	18	14	Required	—	—
Colorado(CO)	16	10	—	—	—
Connecticut(CT)	16	12	Required	—	Yes
Delaware(DE)	12	—	—	—	—
Florida(FL)	16	—	Required	—	Yes
Georgia(GA)	—	—	—	—	Yes
Hawaii(HI)	—	—	—	—	—
Idaho(ID)	16	—	Required	—	—
Illinois(IL)	16	—	—	—	Yes
Indiana(IN)	14	—	—	—	—
Iowa(IA)	18	12	Required	—	—
Kansas(KS)	—	—	—	—	Yes
Kentucky(KY)	16	6	—	≤ age 11: 70cc · ≤ age 15: 90cc	Yes
Louisiana(LA)	17	—	—	—	Yes
Maine(ME)	16	10	Required	—	Yes
Maryland(MD)	16	12	Required	—	—
Massachusetts(MA)	14	—	—	—	—
Michigan(MI)	16	10	Required	—	Yes
Minnesota(MN)	16	12	Required	—	—
Mississippi(MS)	—	—	—	—	Yes
Missouri(MO)	—	—	—	—	Yes
Montana(MT)	16	12	Required	—	Yes
Nebraska(NE)	—	—	—	—	Yes
Nevada(NV)	—	—	—	—	Yes
New Hampshire(NH)	18	12	Required	≤ age 11: 95cc	Yes
New Jersey(NJ)	14	—	Required	≤ age 15: 90cc	—
New Mexico(NM)	18	—	Required	—	—
New York(NY)	16	14	Required	—	Yes
North Carolina(NC)	16	8	Required	≤ age 11: 70cc · ≤ age 15: 90cc	Yes
North Dakota(ND)	16	12	Required	—	Yes
Ohio(OH)	16	—	—	—	Yes
Oklahoma(OK)	—	—	—	—	Yes
Oregon(OR)	—	—	Required	—	Yes
Pennsylvania(PA)	16	8	Required	—	Yes
Rhode Island(RI)	18	12	—	—	Yes
South Carolina(SC)	16	—	Required	—	Yes
South Dakota(SD)	14	—	Required	—	Yes
Tennessee(TN)	—	—	—	—	Yes
Texas(TX)	16	—	Required	≤ age 11: 70cc · ≤ age 15: 90cc	Yes
Utah(UT)	16	8	Required	—	Yes
Vermont(VT)	18	12	Required	—	Yes
Virginia(VA)	16	—	—	≤ age 11: 70cc · ≤ age 15: 90cc	Yes
Washington(WA)	16	13	—	—	Yes
West Virginia(WV)	18	—	Required	—	Yes
Wisconsin(WI)	16	12	Required	—	Yes
Wyoming(WY)	16	10	—	—	Yes

Six states codify engine-size tiers in statute: Kentucky, New Hampshire, New Jersey, North Carolina, Texas, Virginia. Other states defer to the CPSC / ANSI / SVIA Y-6 / Y-10 / Y-12 / Y-14 manufacturer age labels — which appear on every youth ATV sold in the US.

Common questions

Kids’ ATV laws — frequently asked

Short answers to the questions parents ask most about putting a child on an ATV — minimum age, supervision, engine size, and safety course. Each state’s exact citation is in the matrix above.

What's the youngest age my kid can legally ride an ATV unsupervised?
The floor varies by state — most state codes set unsupervised public-land operation at 16, several at 14, and a few at 18. A handful of states (notably Alabama, Alaska, and Mississippi) do not codify a minimum operating age, which means there is no state-statute prohibition but parental judgement is still the operative standard. The quick-reference matrix above lists each state's unsupervised threshold and the exact code citation; the per-state page links to the canonical DNR / DMV portal.
Do I have to be physically present when my child rides on public land?
In most states, yes — below the unsupervised age, an accompanying adult must be present, and several states make the standard explicit (visual contact, within a stated distance, or on a separate machine). The supervised-minor age in the matrix is the floor at which a state allows public-land operation with supervision; below that floor, public-land operation is generally not permitted at all. Private-property carveouts are common: many state OHV statutes write the age and supervision rules around public OHV land and exempt the landowner's family on the owner's own property. The per-state note flags which states apply a private-land carveout.
Is a safety course required for a 12-year-old?
Roughly half the states require a state-approved ATV safety course for minor operators on public land — typically the ATV Safety Institute (ASI) RiderCourse or a DNR-administered equivalent. The age range covered varies: some states require it for any operator under 16, others for any operator born after a cutoff year. Where required, the certificate of completion must usually be carried while riding. The matrix above flags every state with a safety-course requirement; click through to the per-state page for the exact citation and the ASI registration link.
What engine size is right for a 10-year-old?
Six states write engine-size tiers into the OHV code — Kentucky, New Hampshire, New Jersey, North Carolina, Texas, and Virginia. The common floor is 70cc for riders age 11 and under, 90cc for riders 12–15, with 110cc the next-tier upper bound in some states (NH caps the youngest tier at 95cc instead of 70cc). Even in states with no codified tier, the industry-standard CPSC / ANSI guidance lines up with the same age bands. As a parental-decision floor: a 10-year-old beginner is generally on a 70cc-class youth ATV (Honda TRX90X, Yamaha YFZ50 / YFZ90, Polaris Outlaw 70). Anything 110cc-and-up is usually written for ages 12+ regardless of state.
Does my kid need a helmet on a youth ATV?
Yes in nearly every state — the helmet rules apply at least to riders under 16 or 18 on public land regardless of how powerful the machine is, and a youth ATV is not exempt because of its engine size. Eye protection is also required in many states. The helmet axis is covered in the helmet atlas — open that page for the per-state requirement tier and any passenger / private-land carveouts.
Can my kid ride my UTV / side-by-side instead of an ATV?
Most state OHV codes apply the same age and supervision rules to a UTV / side-by-side as to an ATV because both fall under the umbrella OHV definition. A few states split the two — for example, treating a UTV operator-with-passenger under a different supervision standard, or requiring a separate seat-belt-and-roll-cage standard that interacts with passenger age. The minimum-passenger-age rule for a side-by-side is usually that the child can sit upright and reach the seat belt and handhold without slack — a 4 or 5-year-old typically cannot, even on a machine the state would let them ride at 6. The per-state note flags any state that draws a UTV-vs-ATV distinction.
Where can I find an ASI ATV RiderCourse near me?
The ATV Safety Institute (asi.svia.org) maintains the canonical course schedule for the US — search by zip code for the nearest hands-on course. Many state DNRs subsidise or reimburse the course fee for resident minors; the per-state page links the operative state DNR program. Online-only safety-course completion is accepted in some states for first-time-rider certification but not all — confirm before relying on an online completion certificate.

Per-state lookup — open your state’s full atlas page

Each per-state page on this site links to the canonical DNR / DMV portal and lays out the full age, helmet, registration, insurance, DUI, and shoulder-access rules in one place. Open your state for the operative code citations and the safety-course registration link.

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

Minimum age & supervision atlas — the underlying state-by-state matrix used here, expanded with engine-tier breakdown and per-state code notes for every state.
Helmet & safety-gear atlas — helmet rules apply to youth riders in nearly every state regardless of machine displacement. Eye-protection rules are covered there as well.
Registration & Title atlas — OHV registration applies to youth machines the same way it applies to adult machines; the renewal cycle and nonresident trail-permit cost live in the registration matrix.
Insurance requirements by state — homeowner policies often cover ATV operation on the owner’s premises but exclude off-premises use; the insurance atlas maps the four state approaches.
UTV vs ATV vs side-by-side — how state codes classify the OHV family, and where a youth UTV / side-by-side picks up a different supervision or passenger rule than an ATV.