'work platform' means an elevated or suspended temporary work surface used for supporting workers and includes a scaffold and boatswain's chair. 'swing stage' means a work platform that is raised and lowered by manual or powered hoisting equipment, supported by 2 or more suspension lines 'self-propelled' means the capability of an elevating work platform to travel under power with the primary controls on the work platform 'scaffold' means any temporary elevated work platform and its supporting structure used for supporting workers, materials or equipment (b) is not permanently installed on or attached to a building or structure 'portable powered platform' means a movable work platform that (b) is permanently installed on or attached to a building or structure (a) is raised or lowered by other than manual means, and 'permanent powered platform' means a movable work platform that 'movable work platform' means a work platform that can be re-positioned during the course of the work 'elevating work platform' means a movable work platform that self-elevates to overhead work locations 'boatswain's chair' also known as a bosun's chair, means a seat attached to a suspended rope designed to accommodate one person in a sitting position 'boom-supported' means supported by an elevating device that telescopes, articulates, rotates or extends relative to the machine base or vehicle, so that the platform can be positioned completely beyond the base Section 13.1 of the OHS Regulation (' Regulation') states: Issued JanuRevised MaEditorial Revision June 30, 2021 G13.32-1 Work in high-risk situations - Inspection and testing requirements Guidelines Part 13 Division 1 - General G13.32 Prior permission - Platform use in high risk situations G13.28(2) Safe work procedure acceptable to the Board to prevent two-blocking in pile driving and similar applications G13.23(1) Inspection and certification of elevating work platforms G13.19 When and how to ground metal scaffold DIVISION 5 - MOVABLE WORK PLATFORMS G13.8 General requirements - Chair design DIVISION 4 - SCAFFOLDS G13.4 Ladder ratings and selection DIVISION 3 - WORK PLATFORMS G13.2(1)-3 Training requirements for operators of elevating work platforms G13.2(1)-2 Application of CSA and ANSI standards for suspended stages Forestry Operations and Similar Activities Diving, Fishing and Other Marine Operations

Ladders, Scaffolds and Temporary Work Platforms Personal Protective Clothing and Equipment Noise, Vibration, Radiation and Temperature Occupational Health and Safety Regulation

Exterior scaffold drawing