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Field Motor Carrier Services

What's New

weigh station sign with Bypass Photo Enforced warning  

Cameras catch bypassers in the act
Motor Carrier Transportation Division enforcement officers are taking advantage high-speed video camera systems to educate truckers of the folly in illegally bypassing a station. Most vehicles over 20,000 lbs. are required to enter an open weigh station, if not they may receive a $435 citation in the mail and have a court appearance to deal with.

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Ports of Entry & Field Offices

pic of enforcement officer at truck weigh station  

Ashland Port of Entry
NB I-5, California border, PO Box 666, Ashland OR 97520-0023
No Registration Services
Truck Size and Weight Enforcement
Phone: 541-776-6004   ~  FAX: 541-776-6009
District Manager Leslie Elbon

Cascade Locks Port of Entry
EB I-84, east of Portland, 500 SE Frontage Road, Cascade Locks OR 97014-9801
No Registration Services
Truck Size and Weight Enforcement
Phone: 541-374-8980   ~  FAX: 541-374-2240
District Manager Sue Hopkins 

Farewell Bend Port of Entry
WB I-84, Idaho border, 5920 Highway 30, Huntington OR 97907-9707
No Registration Services
Truck Size and Weight Enforcement
Phone: 541-869-2474 ~ FAX: 541-869-2021
District Manager Alice Burley

Klamath Falls Port of Entry
NB US97, California border, 4647 Highway 97 N, Klamath Falls OR 97601-9387
No Registration Services
Truck Size and Weight Enforcement
Phone: 541-883-5701   ~  FAX: 541-883-5564
District Manager Phil Grant

Umatilla Port of Entry
SB I-82, Washington border, 1801 SW Highway 730 E, Umatilla OR 97882-0770
No Registration Services
Truck Size and Weight Enforcement
Phone: 541-922-5183   ~   FAX: 541-922-2979
District Manager Lloyd Pratt

Woodburn Port of Entry
SB I-5, south of Washington border, PO Box 244, Woodburn OR 97071-0244
No Registration Services
Truck Size and Weight Enforcement
Phone: 503-982-0804   ~  FAX: 503-982-7201
District Manager Dennis Ruikka

Portland Bridge Office
I-5, Oregon/Washington Border, 12348 N Center Avenue, Portland OR 97217-7871
Phone: 971-673-5900   ~   FAX: 971-673-5893
Registration Service, 8 a.m. to 5 p.m., Monday through Friday.
Manager Jennifer Coffin 

Bend - District Office, Size & Weight Enforcement
63055 N Hwy. 97, Bend OR 97701
Phone: 541-388-6217
District Manager Phil Grant

La Grande - District Office, Size & Weight Enforcement
3012 Island Avenue, La Grande OR 97850
Phone: 541-963-3170
District Manager Lloyd Pratt

Roseburg - District Office, Size & Weight Enforcement
3500 NW Stewart Parkway, Roseburg OR 97470
Phone: 541-957-3605
District Manager Leslie Elbon

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Training and Assistance

pic of training coordinator with truck driver  
An enforcement officer offers a tip about truck cargo securement
Our enforcement staff can answer questions or provide classes and presentations covering motor carrier regulations, including: 
  • Weigh station scale crossing procedures 
  • Truck size and weight laws 
  • Over-dimension permit requirements 
  • Weight-mile tax and truck registration requirements
  • Federal motor carrier safety regulations and inspection procedures 
If you have questions you would like to ask us or a desire to have training at your facility please contact the Enforcement Region Managers .
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Green Light

pic of truck on I-84 near Idaho border  

Green Light uses high-speed weigh-in-motion scales and transponders so truckers can save the time and money otherwise wasted stopping at major Oregon weigh stations. It's a truck weigh station "preclearance" system that's just like systems in many other states. It's a free, voluntary service available to carriers operating in Oregon.

Green Light systems are currently in place at 21 Oregon weigh stations. Motor carriers using Green Light transponders to preclear Oregon weigh stations are subject to no extra regulatory scrutiny. The information Oregon collects automatically through Green Light is the same information it collects manually when a truck stops at the weigh station.

Visit the Green Light Web page  for more information.
Check a list of the Green Light weigh-in-motion sites throughout Oregon.

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Oregon Weigh Stations

pic of weigh station map  

Oregon Motor Carrier Enforcement Officers work at 87 fixed weigh stations, including 6 Ports of Entry, and dozens of sites capable of supporting portable weigh scale operations. This includes the 21 sites equipped with Green Light weigh-in-motion scales. The Ports of Entry are open more than most stations, but they're all operated on a random schedule.

Who must report to an OPEN scale?
By MCTD policy, vehicles and vehicle combinations exceeding 20,000 pounds must stop and weigh at an Open scale when there is a sign posted prior to the scale that reads "All Trucks Over 20,000# GVW Next Right". At outlying scales without this posted sign, all commercial vehicles and vehicles combinations with a GVWR of 10,000# or greater must stop and weigh at the OPEN scale.  

The following are exempt from the requirements of reporting to an open scale when directed to do so by an OPEN sign -- see ORS 818.400(2):

  • An empty log truck and bunked pole trailer.
  • A vehicle or combination of vehicles that is enroute to a terminal or other legitimate business that requires turning off the highway after passing the OPEN sign but before reaching the scale.
  • A vehicle or combination of vehicles directed to bypass by a weigh-in-motion system.  Exception: Vehicles operating under direction of a Special Transportation Variance Permit directing them to stop at OPEN scales even if they receive a green light on their transponder.
  • Fire equipment with red warning lights and/or siren operating.
  • RV’s (by ORS definition of Commercial Motor Vehicle, ORS 801.208).
  • A bus (by MCTD policy unless required by signage to enter scale).
  • Military vehicles in convoy (by MCTD Policy).

NOTE: Even when exempt from entering an OPEN scale, motor carriers must obtain Oregon weight-mile tax and registration credentials and comply with safety regulations, unless otherwise exempt by law or rule.

Need to weigh a vehicle and get a "certified" scale receipt?
ODOT does not offer this service. ODOT cannot "certify" weights for public vehicles. The customer needs to find a private or public scale that will weigh and "certify" weigh their vehicle. There is usually a cost associated with getting a "certified" weight. If a customer needs to find a certified scale in their local area, they may want to consult phone books, internet searches, etc. Once they have their weights, if they find they need to order credentials from Motor Carrier and have them faxed, they can call the MCTD registration line (503-378-6699) and then they can refer to the Truck Stops list on our website if they don't have a fax number available.

ODOT scale decks are operational 24/7 for public use, including when the sign on the highway may indicate the scale is unmanned and is closed. As you cross or stop on the scale deck, your weights will be indicated on the scale reader board. The only time scale decks are closed to the public is during repair status. If the scale is open, remember you are subject to a citation and fine if an MCEO or Compliance Safety Officer observes an overweight, credential or other traffic violation, even if you are only doing a check weigh for your own use.

Examples of when the public may want to weigh their vehicles:

  • Military personnel needing to weigh their rental truck before and after loaded (could be for relocation reimbursement purposes).
  • Just bought a new piece of equipment and don't know what it weights, could be a solo vehicle such as a crane or new equipment that will be loaded on a trailer.
  • Just started operating and wants to ensure they don't overload their vehicles.
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Entry & Enforcement Policy

Tax and Registration Credentials
Motor carriers with movements that originate in Oregon must obtain tax and registration credentials prior to operation.

Motor carriers with drivers entering Oregon must obtain tax and registration credentials prior to operating in Oregon except in certain situations. Read Oregon´s Entry Policy for Tax and Registration Credentials.  

Check the Registration Services page for information about how to get started trucking in Oregon.

Over-Dimension Loads
Similarly, carriers transporting oversize or overweight loads that originate in Oregon must obtain a variance permit and the driver must possess that permit prior to transport.

Carriers entering Oregon with an oversize or overweight load must obtain a variance permit and the driver must possess that permit prior to entering the State except in certain situations. Read Oregon´s Entry Policy for Over-Dimension Loads

Check the Over-Dimensions Operations page for information about obtaining a permit.

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Size, Weight, Length Limits

pic of truck crossing a static scale  

Oregon law related to truck size, weight, and length limits -
 ORS Chapter 818 - Vehicle Limits

The "legal" operating weight of a truck is determined by tire size, the number of axles, and the wheelbase of the truck or the combination of truck and trailer(s). Legal weights are determined on the basis of the gross allowable weight for single axles and tandem axles and the gross allowable weight for any vehicle, group of axles, and combination of vehicles.

In Oregon, the maximum legal gross weight limit is 80,000 pounds. The gross weight of a single axle cannot exceed 600 pounds per inch of total tire width on the axle (limited also by manufacturer´s sidewall tire rating), or 20,000 pounds, whichever is less. The gross weight of a tandem axle cannot exceed 600 pounds per inch of total tire width of the wheels on tandem axle, or 34,000 pounds, whichever is less.

Combinations with a total gross weight over 80,000 pounds and up to 105,500 pounds must obtain a special permit, called an Extended Weight permit. These permits are often needed, for example, by truckers operating double- and triple-trailer combinations that have legal axle, tandem and group weights, the total of which weigh between 80,001 and 105,500 pounds.

Check a three-page guide to Size Limits and a four-page guide to Weight Limits. Vehicles exceeding the limits are required to obtain a variance permit. See more about Over-Dimension Operations. Also, check an informational handout about using dromedary plates, decks, or boxes to extend cargo-carrying capacity.

Other Restrictions:
Special Oregon road and bridge restrictions
Bridge restrictions on major routes in Oregon
Bridge restrictions on lesser routes

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Chains & Traction Tires

pics of chain and traction tire warning signs  

In Oregon, chains or traction tires are required whenever winter conditions exist and signs are posted advising drivers to carry or use them. State law mentions no dates for when chain and traction tire requirements start and end. That’s because no one knows for sure when winter conditions will start and end for the varied climates throughout the state. Motorists should be prepared and watch for the signs advising when they´re required to carry chains or have traction tires, and when they´re required to use chains. Under certain conditions traction tires may be used in place of chains on vehicles rated at 10,000 pounds gross vehicle weight or less if they´re not towing or being towed.

Winter Travel in Oregon
Oregon Chain Laws and Minimum Chain Requirements are posted on the Internet at ODOT's TripCheck Web site (look for Winter Travel links in lower left corner of TripCheck home page).

The TripCheck site also features Road Cams with regularly-updated camera images of highways around the state.

For road and weather information by phone, dial 511 or 1-800-977-ODOT (within Oregon) or 503-588-2941 (outside Oregon).

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Truck Stops

pic of truck stop  

The Motor Carrier Transportation Division has compiled a list of truck stops with a fax service truckers can use to have credentials sent to them. The list does not include all that are in or near Oregon, just key ones that truckers frequent. View a Web page list of Truck Stops or a two page handout.

Oregon operating credentials are available 24 hours a day, 7 days a week, from the Salem Service Center at 503-378-6699. Trucking companies and their drivers can also use a home or office computer to sign up for Trucking Online  and get credentials via the Internet. Truck drivers headed for Oregon who must do business by phone, fax, or field office visit should first check the schedule for registration service at offices across the state.

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Frequently Asked Questions

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