As an armed commercial vehicle enforcement officer with authority limited to commercial vehicles, enforces laws and regulations pertaining to weight, size, equipment safety, the transporting of hazardous materials, and licensing permit requirements of commercial vehicles, private carrier buses and their operators by weighing and/or inspecting vehicles traveling on public highways, or performs vehicle driver inspections on commercial motor vehicles, assists with investigations of major accidents and fatalities involving commercial vehicles, initiates fuel tax evasion investigations, initiates and assists with investigations as part of the Drug Interdiction Assistance Program (DIAP), initiates and assists with investigations involving stolen heavy duty equipment, and conducts covert surveillance.

Provides security for commercial vehicle staff and facilities;

Weighs commercial vehicles with portable and stationary scales to assure compliance with State weight laws;

Inspects equipment on commercial vehicles through comprehensive, critical item safety inspections to assure compliance with laws governing required and proper condition of equipment;

Conducts safety inspections at roadside locations;

Measures commercial vehicles and their loads to determine compliance with length, width, height, and other configuration requirements;

Inspects commercial vehicles transporting hazardous materials to assure compliance with hazardous materials carrier regulations adopted by the State of Washington;

Inspects driver's documents, operator's licenses, vehicle licenses and permits as required by State laws and federal regulations;

Takes proper commercial vehicle enforcement action in compliance with the laws, regulations, and administrative codes enforced;

Conducts comprehensive equipment inspections of all public pupil transportation vehicles, as required by state law;

Assists in accident investigations involving commercial vehicles by inspecting safety of equipment;

Assists with Major Accident Investigation Team (MAIT) in investigations of major accidents and fatalities involving commercial vehicles;

Responds to hazardous materials incident/accident to assist at the scene as requested;

Operates radiological monitoring devices on radioactive loads, as required by State law;

Issues temporary vehicle licenses and use fuel permits;

Initiates and assists with fuel tax evasion investigations;

Initiates and assists with investigation as part of the Drug Interdiction Assistance Program (DIAP);

Assists with investigations involving stolen heavy duty equipment;

Conducts covert surveillance of commercial vehicles;

Conducts initial on-the-job training of new employees within commercial vehicle program;

Assembles presentations and testifies in court proceedings, as required;

Provides directions, information, and assistance to motoring public; renders first aid as necessary;

Performs other work as required

Knowledge of: first aid.

Ability to: learn laws and rules relating to weights, loads, and licensing of trucks and heavy equipment; use good judgment; deal tactfully and effectively with truckers, equipment operators, and general public; maintain records; prepare reports; understand and follow written and oral instructions.

There may be instances where individual positions must have additional licenses or certification. It is the employer’s responsibility to ensure the appropriate licenses/certifications are obtained for each position.

Persons legally authorized to work in the U.S. under federal law, including Deferred Action for Childhood Arrivals recipients, are eligible for employment unless prohibited by other state or federal law.

A high school diploma or GED.


A valid driver’s license is required.

Equivalent education/experience.

Shadow class adopted June 23, 2025; effective July 1, 2025.