RULE 405. Employees shall wear personal protective equipment provided and maintained by the Employer as follows:

(a) Approved goggles when handling cargo that is liable to injure or irritate the eyes.

(b) Respirators of an approved type when handling cargo liable to injure or irritate the respiratory passages and lungs.

(c) Protective hoods in a sanitary condition for grain employees.

(d) When employees are employed under conditions which expose them to a risk of drowning, they shall wear a device having buoyant effect sufficient to maintain their head above water without any effort on their part. The device provided shall not be dependent upon manual manipulation to produce the buoyant effect. Such devices will be available to employees working on scows.

(e) In the event it becomes necessary to work on the tops of slippery containers, appropriate safety measure(s) shall be taken.