Place and detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials. They perform specialized handling, storage, and accounting procedures. Includes seismograph shooters.

Perform a variety of activities to weatherize homes and make them more energy efficient. Their duties include repairing windows, insulating ducts, and performing heating, ventilating, and air conditioning (hvac) work. They perform energy audits and advise clients on energy conservation measures.

Lay out, cut, and place segmental paving units. Includes installers of bedding and restraining materials for the paving units.

Inspect structures using engineering skills to determine structural soundness and compliance with specifications, building codes, and other regulations. Their inspections may be general in nature or may be limited to a specific area, such as electrical systems or plumbing.

Help roofers by performing duties requiring less skill. Their duties include using, supplying or holding materials or tools, and cleaning work area and equipment.

Help plumbers, pipefitters, steamfitters, or pipelayers by performing duties requiring less skill. Their duties include using, supplying or holding materials or tools, and cleaning work area and equipment.

Help painters, paperhangers, plasterers, or stucco masons by performing duties requiring less skill. Their duties include using, supplying or holding materials or tools, and cleaning work area and equipment.

Help electricians by performing duties requiring less skill. Their duties include using, supplying or holding materials or tools, and cleaning work area and equipment.

Help carpenters by performing duties requiring less skill. Their duties include using, supplying or holding materials or tools, and cleaning work area and equipment.

Lay out, assemble, install, or maintain pipe systems, pipe supports, or related hydraulic or pneumatic equipment for steam, hot water, heating, cooling, lubricating, sprinkling, or industrial production or processing systems.