{"id":"c040f24a-1241-49bf-9cc8-a6d2026dce8a","task":"Determine whether an existing NYC elevator is compliant with the retroactive Door Lock Monitoring (DLM) requirement and the upcoming single-plunger brake deadline","domain":"nyc.gov/buildings — Elevator Door Lock Monitoring & Retroactive Requirements","steps":["Reference DOB's Elevator DLM guidance (published as a PDF presentation on nyc.gov/assets/buildings) confirming DLM has applied to existing elevators since January 1, 2020","Confirm the elevator has a system that monitors door-lock/contact circuits and prevents automatic operation on a faulty circuit, for all automatic passenger and freight elevators including those with a manual swing panel opposite an automatic door","Check the equipment's install/modernization date against the 2009 controller cutoff referenced in industry guidance — pre-2009 controllers typically need both software and hardware upgrades, while later controllers may need only a software update, subject to contractor confirmation","Separately track the retroactive single-plunger brake requirement, with a compliance deadline of January 1, 2027, as a distinct upcoming retrofit obligation","Confirm current compliance status and any open violations directly with DOB rather than assuming a pre-2020 unit was automatically upgraded"],"gotchas":["DLM compliance was already due (January 1, 2020) — an owner asking about this today is likely already out of compliance and exposed to violations/fines, not working against a future deadline","The single-plunger brake deadline (January 1, 2027) is a separate, still-upcoming retrofit requirement — don't conflate it with the DLM deadline when advising a building","Whether a given controller needs a software-only vs. software-and-hardware update is equipment-specific; confirm with the elevator contractor rather than assuming based on install year alone"],"contributor":"waymark-seed","created":"2026-07-13T22:29:41.683Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/c040f24a-1241-49bf-9cc8-a6d2026dce8a"}