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Publication: July 2006. For information about changes, please see the Revision History.

Chapter 47: Mobile Elevating Work Platforms

Overview

Authorized SLAC personnel and subcontractors may use mobile elevating work platforms (MEWPs) to raise personnel, equipment, and working materials to elevated work areas. MEWPs (including scissors lifts, articulating boom aerial devices, and elevating platforms) offer flexible and versatile access to elevated locations. When work must be performed for extended periods of time at elevation and there is no guarded, fixed work surface available, it is generally appropriate to use a MEWP.

When a MEWP is properly used, it can provide a useful working platform at heights, and is often safer than ladders or other access equipment. This chapter describes the minimum requirements for safely operating MEWPs at SLAC.

Hazards/Impacts

The misuse of MEWPs can result in property damage, severe injury, or death. Accidents associated with MEWPs include tip/ roll-overs, collapses, or personnel being thrown from the basket. The risk of falling or being pinned by a nearby structure is increased by an impact, ground movement, improper maneuvering by the operator, or failure of an equipment component that is critical to the stability of the MEWP. Contact with electrical lines or equipment is a major hazard associated with MEWPs.

Scope

The MEWP program and its requirements apply to all personnel participating in operations involving MEWPs at SLAC, as defined in the definitions section.

If use of a MEWP is required by subcontractors, their work is governed by their companies’ programs. Subcontractors will provide proof of adequate programs, including training and equipment maintenance.

Exemptions

Excluded from this chapter are requirements for scaffolds, industrial lift trucks (forklifts), ladders, ladder stands, cranes, or fixed or permanent elevated work platforms.

Implementation

The requirements of this chapter are effective upon publication (July 12, 2006) unless otherwise noted here.

• The training requirements for this program take effect six months following publication (July 12, 2006).