See Factory Assembled Structures Inspector 1.

This is the journey level of the series. Examines construction plans for all types of factory assembled structures to determine compliance with Washington State and other mandated laws, codes, rules and regulations.

Positions at this level work under general direction and exercise independent judgment in reviewing and approving plans for compliance with state and federal laws.

Reviews, interprets and approves building plans, including structural design, fire and life safety designs (for example fire resistant assemblies and emergency exiting systems), energy use design, electrical systems, plumbing systems, fire sprinkler systems and mechanical systems; compares such plans to state adopted building codes and established national standards and requires non-complying designs to be corrected before approving;

Reviews, interprets and approves factory quality assurance programs for recreational and park model Recreational Vehicles manufacturers; compares such programs to established standards and state requirements;

Reviews and approves welding and concrete inspection reports from special inspectors, including engineers, architects, concrete and welding inspectors;

Reviews and approves structural observation reports from engineers and architects;

Advises, coordinates, and reviews plans with architects, engineers, manufactured home, factory built housing and commercial building RV, PMRV, vendor unit, mobile medical unit, temporary worker housing and commercial coach trailer manufacturers, owners and the general public;

Approves application for issuance of state insignias and permits;

Works cooperatively with manufacturers and building inspectors in the interpretation and enforcement of requirements for factory built housing and commercial structures, manufactured and mobile homes, commercial coaches, RVs, PMRVs, conversion vendor units, mobile medical units and temporary worker housing units; and the preparation of effective correspondence;

May be assigned to conduct field inspection duties at locations in state, out of state and out of country, including overseas;

Attends, or presents, continuing education training to stay current on professional licenses and certifications. Stays current on knowledge in relevant fields of building technology;

Prepares and presents training to staff and external program stakeholders;

Serves on statewide and national committees;

Assists in development of program policies, procedures and communications;

Performs other work as required.

Knowledge of: basic construction, mathematic and mechanical practices; applicable federal, national and state laws, codes, rules, regulations and standards on the manufacture, distribution and installation of factory built commercial buildings, factory built housing, manufactured and mobile homes, commercial coaches, RVs, PMRVs, conversion vendor units, mobile medical units and factory built temporary worker housing units.

Ability to: read and interpret blueprints and apply applicable codes, rules and regulations; explain technical requirements to professionals, laymen and other stakeholders; meet and deal effectively with others; prepare clear and concise reports.

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.

Five years of experience:

At journey-level in the building construction trades/craft(s) such as a licensed plumber or electrician, including one year of experience, in an official capacity, reviewing and approving building plans for construction.


As a plans examiner or commercial building inspector with a governmental jurisdiction.


As a supervisor of building construction in the manufacture or inspection of manufactured homes, factory built commercial buildings, commercial coaches, factory-built housing, RVs, PMRVs, conversion vendor units, mobile medical units or factory built temporary worker housing.

College training in structural, electrical or mechanical engineering or architecture may be substituted, for a maximum of two years of the five years of experience.

Certification by the International Code Council as a building plans examiner, building official or building inspector.

New class adopted June 22, 2023, effective July 1, 2023.

Revised Legal Requirements; effective June 6, 2024, due to adopted legislative action.