For the purpose of the Washington state public works law, chapter 39.12 RCW, millwrights install machinery and equipment according to layout plans, blueprints, and other drawings in industrial establishments, using hoists, lift trucks, hand tools and power tools. They read blueprints and schematic drawings to determine work procedures.

The work includes, but is not limited to:

• Dismantle machines, using hammers, wrenches, crowbars, and other hand held tools.

• Move machinery and equipment, using hoists, dollies, rollers, and trucks.

• Assemble and install equipment, such as shafting, conveyors, and tram rails, using hand tools and power tools.

• Construct foundation for machines, using hand tools and building materials, such as wood, cement, and steel.

• Align machines and equipment, using hoists, jacks, hand tools, squares, rules, micrometers, and plumb bobs.

• Assemble machines and bolt, weld, rivet, or otherwise fasten them to foundation or other structures, using hand tools and power tools.