Revised Code of Washington

Wash. Rev. Code § 46.04.552 (2026)

Special mobile equipment

✓ current as of May 2026

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"Special mobile equipment" means every vehicle not designed or used primarily for the transportation of persons or property and only incidentally operated or moved over a highway, including but not limited to: Ditch digging apparatus, well boring apparatus and road construction and maintenance machinery such as asphalt spreaders, bituminous mixers, bucket loaders, tractors other than truck tractors, ditchers, leveling graders, finishing machines, motor graders, road rollers, scarifiers, earthmoving carryalls and scrapers, power shovels and draglines, and self-propelled cranes and earthmoving equipment. The term does not include house trailers, dump trucks, truck mounted transit mixers, cranes or shovels or other vehicles designed for the transportation of persons or property to which machinery has been attached.

[ 1973 1st ex.s. c 17 s 1; 1972 ex.s. c 5 s 1; 1963 c 154 s 30.]

Notes:

Effective date—1963 c 154: See note following RCW 46.37.010.

Notes of Decisions

Cited in 1 case, 1986–1986 · leading case: Ward v. C.I.T. Corp., 715 P.2d 141 (Wash. Ct. App. 1986).

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Ward v. C.I.T. Corp., 715 P.2d 141 (Wash. Ct. App. 1986). “Vehicles defined as "special mobile equipment" (RCW 46.04.552) or "special highway construction equipment" (RCW 46.”

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