Illinois Door-Lock Monitoring Rule: What Building Owners Need to Know

Your building's elevator has run fine for years. The doors close, the car moves, inspections pass. Nothing about the door system has changed.

Illinois wants to change that. The state's Elevator Safety Review Board has proposed a rule that would require door-lock monitoring on existing elevators by January 1, 2034. If your equipment does not already have it, this is a capital expense heading your way.

Here is what the proposal says, whether it applies to your building, and what you can do about it before the comment period closes.

What door-lock monitoring actually is

Door-lock monitoring (DLM) is a system that watches the elevator door circuits and stops the car from running if the doors are not properly closed and locked. Modern codes treat it as a basic safety layer: if a door contact fails or gets bypassed, the elevator should know about it and refuse to move, instead of running with an unsecured hoistway door.

Newer elevators already have it. The question in Illinois is whether the state will require it on older equipment that was installed before the feature became standard.

What Illinois is proposing

The Illinois Elevator Safety Review Board has proposed amendments to the state elevator rules (41 Ill. Adm. Code Part 1000) that would adopt ASME A17.1-2025 and extend door-lock monitoring to existing elevators.

Under the proposal:

• Elevators permitted for installation or alteration after the rules take effect need DLM compliant with ASME A17.1-2025 at the time of the work.
• Existing elevators with power-operated car doors that are mechanically coupled to the landing doors, and no monitoring system today, would need DLM compliant with ASME A17.1-2025 by January 1, 2034.
• Elevators that already have a monitoring system keep complying under the code edition they were installed under.

This is a proposal, not a final rule. An earlier version of this change, built on the 2022 code with a 2029 deadline, was withdrawn in February 2026 after the legislative rules committee objected, mainly over cost impact. The Board has come back with the newer code edition and a much later compliance date.

Does it apply to your building?

If your Illinois elevator has power-operated doors where the car door and landing door move together (the large majority of automatic passenger and freight elevators), the proposed 2034 requirement likely applies. If your equipment already has door monitoring, you are likely already covered.

The only reliable way to know is to ask your service provider one direct question: does this unit have door-lock monitoring, and under which code edition was it installed? Get the answer in writing and keep it with your maintenance records.

What it costs

The State Fire Marshal's own filing estimates $10,000 to $25,000 per elevator to install a compliant monitoring system, and notes the cost can run higher depending on the equipment. That is state estimate language, not a quote for your building. Controller age and condition are the biggest variables: newer controllers often accept monitoring as an add-on, older ones can turn the job into a partial modernization conversation.

The 2034 date is the point. Owners who inventory their equipment now can fold this into capital planning over several budget cycles instead of paying rush pricing in 2033.

Ask your service provider one direct question: does this unit have door-lock monitoring? If the answer is no, ask what a compliant system would cost on your specific equipment. Get it in writing. Use our Contract Scanner to check whether your current maintenance agreement covers any of the upgrade work.

Key dates

• November 5, 2026, 9:30 AM CT: public hearing, 5860 W. 111th Street, Chicago Ridge, Illinois.
• November 23, 2026: written comments close. Comments go to the Office of the State Fire Marshal at [email protected].
• January 1, 2034: proposed compliance date for existing elevators, if the rule is adopted as written.

What to do now

1. Inventory every elevator you own or manage in Illinois: make, controller type, year installed.
2. Ask your service provider, in writing, which units already have door-lock monitoring.
3. Put the 2034 date in your capital plan with the $10,000 to $25,000 per-unit planning range.
4. If the cost or scope concerns you, comment before November 23, 2026. The last version of this rule was withdrawn after pushback on exactly that point.

Elevator Blueprint tracks elevator code changes state by state. Join the free weekly newsletter and we will flag the final Illinois decision, plus every other state's retrofit deadline, as they land.

Sources: OSFM First Notice (41 Part 1000, 2026 proposed rules); OSFM Door Monitoring Systems FAQ.