About Commercial Coaches

A "commercial coach" is a structure (referred to as a unit) that:

• Can be transported in one or more sections;
• Is used for temporary commercial purposes;
• Is built on a permanent chassis;
• Conforms to the construction standards of state law for commercial coaches;
• May include plumbing, mechanical, electrical and other systems;
• May not be used as a single-family dwelling;
• Does not have to be placed on a permanent foundation.

Contact L&I before altering your commercial coach.

See WAC 296-150C.

Forms related to commercial coaches.

What alterations require permits & inspections?

L&I makes sure that changes (alterations) to commercial coaches meet safety standards.

What does L&I consider an "Alteration"?

An "Alteration" is the replacement, addition, modification or removal of any equipment or installation that affects the construction, planning considerations, fire safety, or the plumbing, mechanical and electrical systems.

The following ARE NOT considered alterations:

• Repairs to equipment with approved parts;
• Modification of a fuel-burning appliance according to the listing agency's specifications;
• Adjustment and maintenance of equipment.

Purchase a permit and schedule an inspection

If you need to obtain a permit or schedule an inspection, or have questions about either, please call or visit an L&I office near you.

How much are the fees?

To help estimate your costs, view the fee schedule. Fees can vary, however, depending on what you are doing. Call your local L&I office to request the fees specific to your job.

Fees

Fees for commercial coach alteration permits increased May 1, 2012.

We've also streamlined our fee system so it's no longer necessary for customers to calculate payments depending on the permit type.
View the new fees that went into effect May 1, 2012.

Note: These fees are for estimation purposes only. Please call 360-902-5218 for a complete project estimate for your project. (See WAC 296-150C-3000 for more about these fees.)