Characteristics of Confined Spaces
(1) Internal configuration.
- (a) Open--there are no obstacles, barriers, or obstructions within the space. One example is a water tank.
- (b) Obstructed--the permit space contains some type of obstruction that a rescuer would need to maneuver around. An example would be a baffle or mixing blade. Large equipment, such as a ladder or scaffold, brought into a space for work purposes would be c