Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Confirm the AHJ's adopted code edition permits machine-room-less design (commonly referenced via IBC §3002.3 pointing to A17.1).
Verify the layout drawings submitted at acceptance document the machinery/control space location and the required access points — confirm the specific number/location requirement against the locally adopted edition rather than assuming a fixed generic count.
Confirm dynamic tests (buffer, overspeed/governor, traction, safety-gear, brake) can be performed and observed from outside the hoistway per the applicable inspection procedure for MRL units.
Confirm a car/counterweight blocking (stop) device is installed and used whenever hoistway-mounted equipment requires service, repair, inspection, or replacement.
During field walkthroughs, check for conflicts between jamb-mounted or wall-mounted MRL control spaces and fire door hardware, signage, or mounting hardware installed by other trades after the elevator was accepted.
Known gotchas
Field modifications by other trades (fire door closers, signage, mounting brackets) near jamb-mounted MRL control spaces are a common post-installation source of clearance violations, not just a design-stage risk.
The exact number and location of required access points, and the accepted inspection method, differ across adopted code editions — do not assume a fixed universal count.
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