Washington Administrative Code

Manufacturers are required to open and maintain, for the purpose of inspection payments, a deposit account. Funds, for the purpose of inspections performed by the department, must be withdrawn from the account and all inspections paid in full prior to an insignia being placed on …

(1) Before we issue an insignia, each unit manufactured or converted must be inspected as many times as required to show compliance with this chapter.(2) Before we issue an insignia, a conversion vendor unit or medical unit must be inspected at the manufacturing location as many …

You must contact us and we will let you know where your request for inspection should be submitted. Our address is noted in the definition of department in WAC 296-150V-0020.(1) We must receive in-state inspection requests at least seven calendar days prior to the date that you w…

If your conversion vendor unit or medical unit passes inspection and you have met the other requirements of this chapter, we will attach the insignia.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-0520, filed 8/31/99, effective 10/1/99.]

(1) If you ask us to inspect a conversion vendor unit or medical unit within Washington state but you are not prepared when we arrive, you must pay the inspection fee and travel (see WAC 296-150V-3000).(2) If the inspection is outside of Washington state and you are not prepared,…

The local enforcement agency (city or county) must approve the installation. Alterations to conversion vendor units or medical units must be inspected and approved by us.Note:The local enforcement agency may not open the concealed construction of a conversion vendor unit or medic…

No. Conversion vendor units or medical units must be completed at the manufacturing location before an insignia is attached.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-0550, filed 8/31/99, effective 10/1/99.]

(1) If your conversion vendor unit or medical unit alteration does not pass our inspection, you will receive a notice of noncompliance. The notice of noncompliance explains what items must be corrected.(2) You have twenty days after receiving the notice of noncompliance to send u…

All used conversion vendor units or medical units that are to be installed on a building site or used in Washington state must have an insignia of approval from us.[Statutory Authority: Chapter 43.22 RCW. WSR 16-13-119, § 296-150V-0580, filed 6/21/16, effective 6/21/16; WSR 99-18…

We consider used conversion vendor units and medical units as new units for purposes of insignia approval. To obtain insignia, you must:(1) Have the design plan approved (see WAC 296-150V-0300 and 296-150V-0320);(2) Purchase insignia (see WAC 296-150V-0200 through 296-150V-0230);…

(1) If you are manufacturing conversion vendor units and medical units at more than one location, approved design plans must be available at each manufacturing location.(2) You must send us the following information for each manufacturing location:(a) Company name;(b) Mailing and…

If you are moving you must notify us in writing prior to a change of business name or address and include the change of name and address.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-0710, filed 8/31/99, effective 10/1/99.]

(1) When a manufacturer changes ownership, the new owner must notify us in writing immediately.(2) A new owner may continue to manufacture the units according to a prior approved design plan if the prior owner provides written releases of the design plan.[Statutory Authority: Cha…

(1) A conversion vendor unit or medical unit must comply with the following codes where applicable:(a) The current edition of the International Mechanical Code, with the amendments made by the Washington State Building Code Council, chapter 51-52 WAC.(b)(i) For conversion vending…

(1) A structural analysis is required when a unit has a concentrated floor load of 500 pounds or more in a 16 square feet or less area.(2) The structural load test can be used as an alternative.(a) A structural assembly tested for qualification must sustain the design dead load p…

(1) The roof covering must be securely fastened in an approved manner to the supporting roof construction and must provide weather protection for the vendor unit and the occupants.(2) Exterior covering materials, including metal coverings, must be moisture and weather resistant a…

Wood floors must be made moisture resistant by an overlay of nonabsorbent material applied with water-resistant adhesive.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1040, filed 8/31/99, effective 10/1/99.]

(1) Floor closure material around piping, ducts, plenums, or vents must prevent damage to the underside of the vendor unit due to air, water, insects, dust, and be rodent resistant.(2) The floor closure material must meet ASTM D-781 standard or equal and be installed as follows:(…

The manufacturer's equipment and installation specifications must be followed. Other approved standards are acceptable when:• Installed according to the manufacturer's installation instructions; and• Approved by a listing or testing agency.Note:Gas furnaces, gas water heaters, an…

The flame-spread requirements are that all walls and ceilings must be of 200 flame-spread or less.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1100, filed 8/31/99, effective 10/1/99.]

(1) The exposed wall adjacent to the cooking range must be 50 flame-spread or less, such as 5/16 inch gypsum board or material having equivalent fire protective properties.(2) All openings for pipes and vents in furnace and water heater spaces shall be tight-fitted or fire-stoppe…

The bottom and sides of combustible cabinets over cooking appliances or tops including a space of 6 inches from the edge of the burners must be protected with at least 5/16 inch sheetrock with a 25 flame-spread. This material must be behind deep-fat fryers, grills, ranges, and ot…

Each bathroom must be provided with artificial light and with a window having at least 1/2 square feet of glazed area that can be fully opened, except where a mechanical ventilation system is installed. Any mechanical ventilation system must exhaust directly to the outside of the…

At least one conversion vending unit exit or medical unit exit must meet the following requirements:(1) Exterior doors must be constructed for exterior use.(2) The exterior door must be at least a twenty-eight inch wide clear opening by seventy-two inches high.(3) Locks must be o…

Exit door(s) on self-propelled medical units must meet the following requirements:(1) Exterior doors must be constructed for exterior use.(2) The exterior door must be at least a twenty-eight inches wide clear opening by seventy-two inches high.(3) Locks must be operable from the…

If a conversion vendor unit or medical unit has an interior door, such as a bathroom door, which has a privacy lock, the lock must contain an emergency release. The emergency release must be on the outside to permit entry when the door is locked from the inside.[Statutory Authori…

Storage batteries subject to the provisions of this standard must be securely attached to the conversion vendor unit or medical unit. They must be installed in an area which is vapor-tight to the interior and ventilated directly to the exterior of the unit. When batteries are ins…

When mechanical and ventilation equipment is installed in or on a conversion vendor unit or medical unit, it must be installed according to the requirements of the International Mechanical Code, and to the conditions of the equipment approval or listing.[Statutory Authority: Chap…

(1) LPG containers must not be installed, nor stored temporarily, inside any unit. Exception: This prohibition does not apply to completely self-contained hand torches, lanterns, or similar equipment with containers having a maximum water capacity of two and one-half pounds (appr…

Conversion vendor units or medical units requiring fuel gas for any purpose must be equipped with a gas piping system that is designed for LPG only or combination LPG and natural gas.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1360, filed 8/31/99, effective…

(1) Tubing must not be run inside walls, floors, partitions, or roofs.(2) If tubing passes through walls, floors, partitions, roofs, or similar installations, the tubing must be protected by the use of weather resistant grommets that snugly fit both the tubing and the hole throug…

(1) Screw joints must be made tight with pipe-joint compound that is insoluble in liquefied petroleum gas.(2) Pipe-joint compound must be approved for the type of gas used. The pipe-joint compound must be applied to the male threads only.[Statutory Authority: Chapter 43.22 RCW. W…

(1) All gas piping must be adequately supported by galvanized or equivalently protected metal straps or hangers at intervals of not more than 4 feet, except where adequate support and protection is provided by structural members.(2) Gas pipe supply connections must be rigidly anc…

(1) Gas piping must not be used for an electrical ground.(2) The gas line must be bonded.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1410, filed 8/31/99, effective 10/1/99.]

A label must be permanently attached on the outside of the exterior wall of the conversion vendor unit or medical unit adjacent to the gas supply connection which provides the following information:(1) The type of system (i.e., liquid petroleum system or natural gas system or com…

All openings in the gas piping system must be closed gas-tight with threaded pipe plugs or pipe caps.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1430, filed 8/31/99, effective 10/1/99.]

(1) In addition to any valve on the appliance, a shut-off valve must be installed in the fuel piping outside of each gas appliance but inside the conversion vendor unit or medical unit structure and upstream of the union or connector. The shut-off valve must be located within six…

(1) The piping system must stand a pressure of at least 10 psi gauge for a period of not less than fifteen minutes without showing any drop in pressure.(2) Pressure must be measured with a gauge calibrated to be read in increments of not greater than 1/10 pound.(3) The source of …

(1) After gas appliances have been connected, the gas-piping system must be subjected to a pressure test with the burner valves closed. The test consists of air at not less than ten inches nor more than fourteen inches pressure of water column (six to eight ounces). The system mu…

(1) The installation of each appliance must conform to the manufacturer's installation instructions. The manufacturer's instructions must be attached to the appliance.(2) Combustion air inlets and flue gas outlets must be listed as components of the appliance and must be complete…

This chapter also applies to the installation of plumbing equipment in any conversion vendor unit or medical unit bearing or required to bear a department insignia. Plumbing fixtures, equipment, and installations in conversion vendor units and medical units must conform to the pr…

Definitions contained in the Uniform Plumbing Code apply to this chapter:"Drain outlet" is the discharge end of the conversion vendor unit or medical unit main drain to which a drain connector may be attached."Main drain" is the principal artery of the conversion vendor unit or m…

Drain outlets must be equipped with a watertight cap or plug that must be permanently attached to the unit.[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1550, filed 8/31/99, effective 10/1/99.]

The drain outlet and couplers must have a minimum clearance of three inches in any direction from all parts of the structure or appurtenances and with at least eighteen inches unrestricted clearance directly in front of the drain outlet.[Statutory Authority: Chapter 43.22 RCW. WS…

Water-supply connections must be equipped with a watertight cap or plug that must be permanently attached to the vehicle.Note:The department of health may have more restrictive requirements. Before modifying your unit to comply with these requirements, be sure to contact that age…

(1) All water heaters must be installed with approved fully automatic valve or valves designed to provide temperature and pressure relief. Temperature and pressure relief valves must be tested and approved to ANSI Z21.22 standard or equal.(2) Any temperature relief valve or combi…

Conversion vendor units may use either portable waste holding tanks approved by the department of health or permanently mounted waste holding tanks.(1) All portable waste holding tanks must be listed for the intended use and used per their listing.(2) All permanently mounted wast…

(1) If the unit does not have any alterations made to body and frame design, construction, plumbing, heating or electrical installations since it was constructed, it will need an insignia issued by the department. In order to receive the insignia, the unit must have been:(a) Manu…

(Effective until July 1, 2026)INITIAL FILING FEE$51.80DESIGN PLAN FEES: INITIAL FEE - MASTER DESIGN$360.40 INITIAL FEE - ONE YEAR DESIGN$147.20 RENEWAL FEE$62.30 RESUBMIT FEE$105.00 ADDENDUM (Approval expires on same date as original plan)$105.00 PLANS APPROVED BY LICENSED PROFES…

(1) This chapter has been compiled with the purpose of consolidating safety and health construction safety standards into one chapter of the Washington Administrative Code, by the promulgation of the standards contained herein. It is also the intent that the safety standards of t…