The most important machine design step is ensuring operator safety. During the design process, hazards are often identified that can be removed, but when a hazard cannot be removed, then various levels of safeguarding must be provided. These typically take the form of machine access guarding and point-of-operation guarding.

OSHA standards clearly define mandatory compliance and requirements for employers to follow with respect to eye and face protection. Following these requirements ensures protection against chemical, environmental, and radiological hazards or mechanical irritants.