A professional who guards entrance gate of industrial plant and grounds, warehouse, or other property to control traffic to and from buildings and grounds. Respnsibilities include:

• Opens gate to allow entrance or exit of employees, truckers, and authorized visitors.
• Checks credentials or approved roster before admitting anyone.
• Issues passes at own discretion or on instructions from superiors.
• Directs visitors and truckers to various parts of grounds or buildings.
• Inspects outgoing traffic to prevent unauthorized removal of company property or products.
• May record number of trucks or other carriers entering and leaving.
• May perform maintenance duties, such as mowing lawns and sweeping gate areas.
• May require permits from employees for tools or materials taken from premises.
• May supervise use of time clocks for recording arrival and departure of employees.
• May answer telephone and transfer calls when switchboard is closed.
• When stationed at entrance to restricted area, such as explosives shed or research laboratory, may be designated Controlled-Area Checker.