Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 22 - Walkways
Section 22.4 - LEVEL CHANGES
Universal Citation: 521 CMR 22 MA Code of Regs 22.4
Current through Register 1531, September 27, 2024
Walkways shall have continuous common surfaces, not interrupted by steps or changes in level greater than 1/4 inch (1/4" = 6mm).
22.4.1 Changes in level between 1/4 inch and 1/2 inch (1/4" and 1/2" = 6mm and 13mm) shall be beveled with a slope no greater than 1:2 (50%). See Fig. 22a.
22.4.2 Changes in level greater than 1/2 inch (1/2" = 13mm) shall require a curb cut, walkway, ramp, elevator, or platform lift that complies with 521 CMR 21.00: CURB CUTS, 521 CMR 22.00: WALKWAYS, 521 CMR 24.00: RAMPS or 521 CMR 28.00: ELEVATORS.
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