WAC 51-50-0406
Section 406 -- Motor-vehicle-related occupancies.
406.2.6
Floor surface.
Parking surfaces shall be of concrete or similar noncombustible and nonabsorbent materials.
EXCEPTION:
Asphalt parking surfaces are permitted at ground level.
[Statutory Authority: RCW
19.27.074
,
19.27.020
, and chapters
70.92
,
19.27
, and
34.05
RCW. 07-01-091, § 51-50-0406, filed 12/19/06, effective 7/1/07.]