This Practice describes the requirements for the design, fabrication, inspection, testing, and shipping of free-standing outdoor enclosures. This equipment is used for housing low and medium voltage motor controllers and switchgear. The requirements of this Practice shall apply to walk-in and non-walk-in enclosures located in a non-classified area. This Practice is not intended for enclosures that will be located in classified areas. These enclosures are not intended for climate-controlled or pressurized applications. When pressurized or insulated climate-controlled enclosures are required, see PIP ELSSG11.