Drive ambulance or assist ambulance driver in transporting sick, injured, or convalescent persons. They assist in lifting patients.

Ensure the safe takeoff and landing of commercial and military aircraft. Their duties include coordination between air traffic control and maintenance personnel; dispatching; using airfield landing and navigational aids; implementing airfield safety procedures; monitoring and maintaining flight records; and applying knowledge of weather information.

Control air traffic on and within vicinity of airport and movement of air traffic between altitude sectors and control centers according to established procedures and policies. They authorize, regulate, and control commercial airline flights according to government or company regulations to expedite and ensure flight safety.

Directly supervise and coordinate activities of transportation and material moving machine and vehicle operators and helpers.

Directly supervise and coordinate the activities of helpers, laborers, or material movers.

Prepare and sort materials or products for recycling. They identify and remove hazardous substances. They dismantle components of products such as appliances.

Cut or carve stone according to diagrams and patterns.

Perform work involved in developing and processing photographic images from film or digital media. They perform precision tasks such as editing photographic negatives and prints.

Construct, fit, maintain, or repair medical supportive devices, such as suspenders, orthotics and prosthetic devices, joints, arch supports, and other surgical and medical appliances.

Fabricate, finish, or evaluate the quality of gems and diamonds used in jewelry or industrial tools.