OSHA does not have a specific standard for scissor lifts. What kind of fall protection is expected for workers on either self- or manually propelled lifts?

When scissor lift platforms elevate workers four feet or more above the floor, a fall protection system must be in place. Safety belts and lanyards would be required in situations where guardrails or the equivalent are not provided. This would include: when a section of guardrail is not in place on the platform; or when a horizontally extensible platform is available (which may be used only after being elevated and placed in position) but is not provided with a guardrail on its outer end and may have a portion of guardrail missing during use.

OSHA has stated that it may refer to industry consensus standards such as ANSI/SIA A92.3, Manually Propelled Elevating Aerial Platforms and ANSI/SIA A92.6, Self-Propelled Elevating Work Platforms to enforce abatement of serious safety hazards involving scissor lifts.