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PDFWAC 296-17A-3506

Classification 3506.

3506-02 Mobile crane and hoisting services; Rigging contractors, N.O.C.
Applies to establishments engaged in mobile crane and hoisting services and rigging contractors not covered by another classification (N.O.C.). There are many types of cranes and derricks, both stationary and nonstationary. A mobile crane is a tire-mounted machine for hoisting and moving heavy objects by cables attached to a moveable boom. Rigging consists of a system of ropes, chains, cables, or tackle used for support. Generally, these types of establishments respond to and service customer requests such as righting an overturned tractor trailer, hoisting a large bell, or placement of a satellite dish on top of a building. In addition, mobile crane businesses often maintain a variety of nonmobile cranes and derricks such as those used for construction of tall buildings or structures. This classification includes transporting of a nonmobile crane or derrick to and from a customer site, but excludes the set up or erection, operating, and disassembling of the unit.
This classification excludes the construction or erection of permanent nonmobile cranes (such as those permanently mounted at a manufacturing plant or seaport to load cargo) which are to be reported separately in classification 0508; and the set up, erection, operating, and disassembling of cranes, hoisting devices or rigging in connection with work covered under a construction classification which are to be reported separately in the construction classification applicable for the work being performed.
Special note: This classification includes mobile crane and hoisting businesses when providing a service at a construction site such as lifting an air conditioning unit to a building top, and provided the crane operator is an employee of the crane and hoisting business.
3506-03 Concrete pump truck service
Applies to establishments engaged in concrete pump truck services, including the pump truck control box operator. A concrete pump truck is a large vehicle equipped with an adjustable boom spanning approximately 65' in length equipped with a flexible 4" hose running alongside the boom. This type of vehicle is different from a concrete ready mix truck which mixes the concrete in a rotating or revolving drum prior to arriving at the project site and discharges the mix with use of a metal shoot. A concrete pump truck is designed to pump concrete into areas which are difficult for a concrete ready mix truck to reach such as a tall retaining wall, the foundation of a building or structure many feet below ground level, or into an area with limited access. Concrete is fed into the bed of the pump truck (usually by a ready mix concrete truck). The driver of the pump truck also operates the control box which adjusts the boom and amount of concrete mix to discharge. The control box operator receives instructions from a construction worker overseeing the concrete pour.
This classification excludes ready mix concrete dealers who deliver concrete who are to be reported separately in classification 3101 and all other concrete construction activities occurring at the project site which are to be reported separately in the classification applicable to the construction work being performed.
Special note: This classification is limited to the concrete pump truck driver and operation of the control box. Construction workers at the project site, such as workers who are positioning and repositioning the end of the boom which discharges concrete, or workers who provide instructions with use of a headset to the control box operator, or workers who are spreading the concrete as it is poured, are to be reported separately in the classification applicable to the construction work being performed.
[WSR 07-01-014, recodified as § 296-17A-3506, filed 12/8/06, effective 12/8/06. Statutory Authority: RCW 51.16.035. WSR 98-18-042, § 296-17-590, filed 8/28/98, effective 10/1/98; WSR 96-12-039, § 296-17-590, filed 5/31/96, effective 7/1/96. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 90-13-018, § 296-17-590, filed 6/8/90, effective 7/9/90. Statutory Authority: RCW 51.16.035. WSR 85-24-032 (Order 85-33), § 296-17-590, filed 11/27/85, effective 1/1/86; WSR 83-24-017 (Order 83-36), § 296-17-590, filed 11/30/83, effective 1/1/84; Order 73-22, § 296-17-590, filed 11/9/73, effective 1/1/74.]
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