A revision of B77.1-2006 continues a standard for the design, manufacture, construction, operation, and maintenance of passenger ropeways. For this standard, passenger ropeway categories include: - aerial tramways (single and double reversible), - aerial lifts (detachable lifts, chair lifts, and similar equipment), - surface lifts (T-bar lifts, J-bar lifts, platter lifts, and similar equipment), - tows (wire rope and fiber rope tows) - conveyors.