§ 1917.2 Definitions.

Apron means that open portion of a marine terminal immediately adjacent to a vessel berth and used in the direct transfer of cargo between the terminal and vessel.

Authorized, in reference to an employee's assignment, means selected by the employer for that purpose.

Cargo door (transit shed door) means a door designed to permit transfer of cargo to and from a marine terminal structure.

Cargo packaging means any method of containment for shipment, including cases, cartons, crates and sacks, but excluding large units such as intermodal containers, vans or similar devices.

Confined space means:

(1) A space having all of the following characteristics:

(i) Small size;

(ii) Severely limited natural ventilation;

(iii) Capability to accumulate or contain a hazardous atmosphere;

(iv) Exits that are not readily accessible; and

(v) A design not meant for continuous human occupancy.

(2) Examples of confined spaces are intermodal tank containers, bailwater tanks and portable tanks.

Conveyor means a device designed exclusively for transporting bulk materials, packages or objects in a predetermined path and having fixed or selective points of loading or discharge.

Danger zone means any place in or about a machine or piece of equipment where an employee may be struck by or caught between moving parts, caught between moving and stationary objects or parts of the machine, caught between the material and a moving part of the machine, burned by hot surfaces or exposed to electric shock. Examples of danger zones are nip and shear points, shear lines, drive mechanisms, and areas beneath counterweights.