Known as four-wheelers, quads, 3-wheelers. Can be 2 or 4 wheel drive. Also include 6x6 ATVs.

Note: the Polaris Ace is considered a Class IV since it has a steering wheel and seat.

Definition: (ORS 801.190)

• Vehicle 50 inches wide or less
• Dry weight of 1,200 pounds or less
• Uses handlebars for steering;
• Has a seat designed to be straddled for the operator
• Travels on three or more pneumatic tires that are 6" inches or more in width and has wheels with a rim diameter 14" or less.

Vehicle requirements

• ATV Sticker. An ATV Operating Permit is required if the machine is operated on lands open to ATV use.
• Insurance. Liability insurance is not required
• Titles. Titles are not required. Cannot be registered to get a license plate.
• Equipment. Meet the safety equipment standards for off-road vehicles including:
• Seat and foot pegs or floor pan which protects the all rider's feet
• Working brakes
• Secure fuel tank
• Flag when operating on sand
• Headlights and taillights when operating after dark.
• Mufflers. Adequate muffler to limit sound emissions to 97 db. Spark arrester during fire season.
• Fire Season. During fire season, there may be extra restrictions on equipment and where you can be driven. Depends on the land owner and the timing of the year. As a general rule, during fire season you should have a shovel and fire extinguisher for every vehicle when in the forest. You will also need a muffler and an exhaust system in good working order, which prevents sparks. Some areas will restrict use to improved roads free for vegetation. Oregon Department of Forestry. US Forest Service, check with each forest.

Operator requirements

• License. All operators must hold a valid ATV Safety Education Card. Operators with a suspended or revoked Driver License may not operate any Class of ATV.
• Helmets. Youth under 18 must wear a DOT approved helmet with the chin strap fastened. ORS 821.202
• Youth under 16 MUST:
• Be supervised by an adult who is at least 18 years old and holds a valid ATV Safety Education Card and can provide immediate assistance and direction to the children.
• Meet Rider Fit rules, including arm, hand and leg length.
• Successfully complete a hands-on training course

Include pickup trucks, SUVs, Jeeps, rock crawl vehicles and sand rails.

They may be street legal or for off-highway use only. Vehicles that have an unrestricted license plate are allowed to drive most gravel roads that are open to passenger vehicles, without needing an ATV Permit. They are required to have an ATV Permit when they leave the road, such as operating on trails or the dunes.

Definition: (ORS 801.193)

• Weighs more than 1,200 pounds or is wider than 50 inches
• Is designed for or capable of cross-country travel on or immediately over land, water, sand, snow, ice, marsh, swampland or other natural terrain
• Is actually being operated off a highway
• Is not a Class IV all-terrain vehicle (side-by-side)
• Note: If a side-by-side or quad does not meet the definition of their category, such as after installing tracks, then they become a Class II vehicle.

Vehicle requirements

• ATV Sticker. An ATV Operating Permit is required for your machine if you are operating it on lands open to ATV use. If the vehicle has a license plate, it needs an ATV sticker on trails or sand dunes. If operating a vehicle with a valid license plate on roads which are open to passenger vehicles (such as logging roads), then no sticker is required.
• Insurance. Liability insurance is required by law
• Titles. Titles are required for vehicles with a registration (license plate). Vehicles without a plate, such as a sand rail or rock crawler, do not need a title
• Equipment. Meet the safety equipment standards for off road vehicles including:
• 2lbs. fire extinguisher
• Roll bar or enclosed cab
• Seats and seat belts for operator and all passengers
• Windshield wipers, if equipped with a windshield
• Working brakes
• Secure fuel tank
• Secure floor pan protecting rider's feet
• Flag when operating on sand
• Headlights and taillights when operating after dark.
• Mufflers. Adequate muffler to limit sound emissions to 95 db for front engine vehicles and 97 db for mid or rear engine vehicles
• Fire Season. During fire season, there may be extra restrictions on equipment and where you can drive. This depends on the land owner and the timing of the year. As a general rule, during fire season you should have a shovel and fire extinguisher for every vehicle when in the forest. You will also need a muffler and an exhaust system in good working order, which prevents sparks. Some areas will restrict use to improved roads free for vegetation. Oregon Department of Forestry. US Forest Service, check with each forest.

Operator requirements

• License. Must have a valid Driver License or Instruction Driver Permit. Operators with a suspended or revoked Driver License may not operate any Class of ATV.
• Helmets. Youth under 18 must wear a DOT approved helmet with the chin strap fastened. ORS 821.202
• Seat Belts. Youth under 16 must wear safety restraints in accordance with ORS 811.210, including child seats for children weighing less than 40lbs

2 wheeled motorcycles.

Includes dual sport (street legal) motorcycles used on trails.Vehicles that have an unrestricted license plate are allowed to drive most gravel roads open to passenger vehicles, without needing an ATV Permit. Required to have an ATV Permit when they leave the road, such as operating on trails or the dunes.

Definition: (ORS 801.194)

• Vehicles traveling on two tires.
• Is actually being operated off highway.

Vehicle requirements

• ATV Sticker. An ATV Operating Permit is required for your machine if you are operating it on lands open to ATV use.
• Insurance. Liability insurance is not required by for Class III ATVs, unless they are street legal.
• Titles. Titles are not required. Can only be registered to get a license plate manufactured for highway use. Off-road motorcycles cannot be converted to be street legal
• Equipment. Meet the safety equipment standards for off-road vehicles including:
• Seat and foot pegs or floor pan protecting all rider's feet
• Working brakes
• Secure fuel tank
• Flag when operating on sand and
• Headlights and taillights when operating after dark
• Mufflers. Adequate muffler to limit sound emissions to 99 db. Spark arrester during fire season
• Fire Season. During fire season, there may be extra restrictions on equipment and where you can drive. This depends on the land owner and the timing of the year. As a general rule, during fire season you should have a shovel and fire extinguisher for every vehicle when in the forest. You will also need a muffler and an exhaust system in good working order, which prevents sparks. Some areas will restrict use to improved roads free for vegetation. Oregon Department of Forestry. US Forest Service, check with each forest.

Operator requirements

• License. All operators must hold a valid ATV Safety Education Card. Operators with a suspended or revoked Driver License may not operate any Class of ATV.
• Helmets. Youth under 18 must wear a DOT approved helmet with the chin strap fastened. ORS 821.202
• Youth under 16:
• Must be supervised by an adult who is at least 18 years old holding a valid ATV Safety Education Card and able to provide immediate assistance and direction to the children.
• Must be at least 7 years old
• Must also successfully complete a hands-on training course

Commonly known as side-by-sides.

Basically they have a steering wheel, non-straddle seat and roll cage. The industry produces Recreational Off-Highway Vehicle (ROV) and Utility Task Vehicle (UTV) and they both are considered Class IV ATVs.

ROVs have a max speed of 30mph. The single seat Polaris Ace is also a Class IV. Land managers may designate trails by width and limit side-by-sides by 50 or 65 inches due to narrow bridges or tight trees.


Definition: (ORS 801.194)

• Is 80 inches wide or less at its widest point.
• Has a dry weight of 2,500 pounds or less
• Has non-straddle seating
• Has a steering wheel for steering control
• Travels on four or more pneumatic tires that are six inches or more in width and has wheels with a rim diameter 14" or less.

Vehicle requirements

• ATV Sticker. An ATV Operating Permit is required for your machine if you are operating it on lands open to ATV use.
• Insurance. Liability insurance is not required.
• Titles. Titles are not required. Cannot be registered to get a license plate.
• Equipment. Meet the safety equipment standards for off-road vehicles. including:
• 2lbs. fire extinguisher
• Roll bar or enclosed cab
• Seats and seat belts for operator and all passengers,
• Windshield wipers, if equipped with a windshield.
• Working brakes
• Secure fuel tank
• Secure floor pan which protects rider's feet.
• Flag when operating on sand and
• Headlights and taillights when operating after dark.
• Mufflers. Adequate muffler to limit sound emissions to 97 db. Spark arrester during fire season.
• Fire Season. During fire season, there may be extra restrictions on equipment and where you can drive. This depends on the land owner and the timing of the year. As a general rule, during fire season you should have a shovel and fire extinguisher for every vehicle when in the forest. You will also need a muffler and an exhaust system in good working order, which prevents sparks. Some areas will restrict use to improved roads free for vegetation. Oregon Department of Forestry. US Forest Service, check with each forest.

Operator requirements

• License. Must have a valid Driver License or Instruction Driver Permit. If under age of 16, may operate a youth machine, with ATV Safety Education Card and adult supervision. Operators with a suspended or revoked Driver License may not operate any Class of ATV. Example: the Polaris RZR 170 manufacturer recommendation is for riders 10 years old and older. A youth 10 and older is allowed to operate this vehicle if that youth has been trained and has a valid ATV Safety Education Card
• Helmets. Youth under 18 must wear a DOT approved helmet with the chin strap fastened. ORS 821.202
• Seat Belts. Youth under 16 must wear safety restraints in accordance with ORS 811.210, including child seats for children weighing less than 40lbs
• Youth under 16:
• Must be supervised by an adult who is at least 18 years old holding a valid ATV Safety Education Card and able to provide immediate assistance and direction to the children.
• Can only operate a machine that has a manufacturer recommendation for their age.
• Must also successfully complete a hands-on training course