A policy that hard hats must be worn when working in the vicinity is the hard hat policy, this is in accordance with; CCR Title 8, Section 3380, Personal Protective Devices Labor Code Section 142.3 (d). Most of the plants have a firm policy that all persons on site must wear a hardhat, safety glasses and steel-toe work boots.  On wastewater plant sites which include tertiary treatment, use of a number of corrosive chemicals and some areas of the plant might have low hanging bars or other obstructions.  In other areas the operator can be exposed to something falling from the height. It looks strange some time and worker at site think why I should wear it ? I am not exposed to such hazard, but it is a lot easier and more reliable to require hardhats to be worn in all area at all times, than designating selective areas or situation. Thus it is a policy of using ‘head’ to ensure safety at work place.

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WAC 296-155-205 Head protection.

(1) All employees on any construction site shall be provided an individual hard hat which meets all requirements of (a) and (b) of this subsection. Employers shall provide individual hard hats at no cost to the employees.

(a) Hard hats for the protection of employees against impact and/or penetration of falling and flying objects shall meet the specifications contained in American National Standards Institute, Z89.1-1969, Safety Requirements for Industrial Head Protection.

(b) Hard hats for the head protection of employees exposed to high voltage electrical shock and burns shall meet the specifications contained in American National Standards Institute, Z89.2-1971.

(2) All employees must have their individual hard hats on site and readily available at all times.

(3) All employees shall wear a hard hat on any construction site whenever there is a potential exposure to danger of flying or falling objects to persons working or occupying the area.

Note: The hard hat may be removed whenever there is no potential exposure to a hazard.

(4) (a) Employees working on asphalt paving crews exposed to extreme temperatures from hot mix and not exposed to falling objects do not have to wear protective hard hats.

(b) Flaggers working with asphalt paving operations must comply with the requirements of WAC 296-155-305.

(5) Caps with metal buttons or metal visors shall not be worn around electrical hazards.

(6) Employees working near moving machinery or in locations which present a hair-catching or fire hazard shall wear caps, nets or other head and face protection that will completely contain the hair.