There has been some confusion as to which OSHA standards apply to the use of scissor lifts. The aerial lift requirements (§1926.453) incorporate by reference the definition of aerial lifts used in the American National Standards Institute (ANSI) A92.2-1969 standard. Therefore, the requirements in §1926.453 apply to equipment identified in that 1969 ANSI consensus standard as aerial lifts. The ANSI standard definition includes the following vehicle-mounted elevating and rotating work platforms: "extensible boom platforms," "aerial ladders," "articulating boom platforms," "vertical towers," and "a combination of any of the above."

Scissor lifts, including those with platforms that extend beyond the equipment's wheelbase, do not fall within any of these categories. Therefore, scissor lifts are not addressed by the aerial lift provisions of Subpart L. While there are no OSHA provisions that specifically address scissor lifts, they do meet the definition of a scaffold (§1926.451 - general requirements for scaffolds). Employers must therefore comply with the other applicable provisions of Subpart L when using scissor lifts. For example, since scissor lifts are mobile, the specific requirements for mobile scaffolds in the scaffold standard (§1926.452(w) - mobile scaffolds) must be met.