A professional who enforces laws, regulations, and policies in state or national park. Responsibilities include:

• Registers vehicles and visitors, collects fees, and issues parking and use permits.
• Provides information pertaining to park use, safety requirements, and points of interest.
• Directs traffic, investigates accidents, and patrols area to prevent fires, vandalism, and theft.
• Cautions, evicts, or apprehends violators of laws and regulations.
• Directs or participates in first aid and rescue activities.
• May supervise workers engaged in construction and maintenance of park facilities and enforces standards of cleanliness and sanitation.
• May compile specified park-use statistics, keep records, and prepare reports of area activities.
• May train and supervise park workers and concession attendants.
• May specialize in snow safety and avalanche control and be designated Snow Ranger.