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The design, construction, installation, maintenance, inspection, and operation of conveyors and conveying systems in relation to accident hazards. Conveyors covered by the B20 standard include such items as power conveyors, gravity conveyors, pneumatic tubes, skip hoists, vertical reciprocating conveyors, and power unloading scoops, except as provided in the following paragraph. The B20 standard does not apply to industrial powered trucks, tiering machines, cranes, derricks, hoists, power-and hand shovels, bucket drag lines, moving stairways, dumbwaiters, manlifts, and platform elevators to carry passengers or the elevator operator.  


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VICE CHAIR Hans E Rodgers
Riad Mohamed
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Additional Committees
A17 Elevators and Escalators
US TAG to TC178 (A17 International Standards Committee)
A17 B44.1/A17.5 Committee On Elevator and Escalator Electrical Equipment
A17 Code Coordination Committee
A17 Dumbwaiter and ATD Committee
A17 Earthquake Safety Committee
A17 Electrical Committee
A17 Emergency Operations Committee
A17 Escalator and Moving Walk Committee
A17 Existing Installations
A17 Hoistway Committee
A17 Hydraulic Committee
A17 Inspections Committee
A17 Limited-Use/Limited-Application Elevator Committee
A17 Maintenance, Repair, and Replacement Committee
A17 Mechanical Design Committee
A17 Mine Elevator Committee
A17 New Technology Committee
A17 Residence Elevator Committee
Board on Safety Codes and Standards
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