Emergency Light and Exit Sign Testing Requirements Explained

Battery-powered emergency lights and exit signs in commercial buildings need a short functional test every month and a full-duration test once a year, with the results written down. In the US the usual reference is NFPA 101 (the Life Safety Code), which most states and fire marshals adopt; in Canada it is the National Fire Code of Canada or the provincial fire code built on it, which points to CSA C22.2 No. 141 for unit equipment. The tests are simple, and the most common failures (dead batteries, burnt lamps, damaged lenses) are routine maintenance work.

The US rules: NFPA 101 and OSHA

NFPA 101, section 7.9.3, sets the periodic testing schedule for battery-powered emergency lighting:

• Monthly: a functional test of at least 30 seconds on every unit. You press the test button (or cut the circuit) and confirm the lamps come on at usable brightness on battery power.
• Annually: a full test of 1.5 hours on battery. The lights must stay on for the whole period. Many units dim toward the end, and the code allows some decline in output, but a unit that goes dark early fails.
• Records: written results of both tests must be kept for review by the authority having jurisdiction, usually the local fire marshal.

The code also allows self-testing and self-diagnostic units, which run their own tests and flag failures with an indicator light. Those still need someone to walk the building and look at the indicators, and the paperwork still has to exist.

Separately, OSHA's exit route rule (29 CFR 1910.37) requires exits to be clearly marked by visible signs and kept lit, so a dark or unreadable exit sign is a workplace safety issue on top of a fire code one. Your state or city may adopt a specific NFPA edition or the International Fire Code, which carries similar language, so check which one your fire marshal enforces.

The Canadian rules: fire codes and CSA C22.2 No. 141

In Canada, the National Building Code decides where emergency lighting goes and how long it must last, typically 30 minutes for most buildings and longer for high buildings and certain occupancies. The National Fire Code of Canada, and the provincial fire codes based on it (the Ontario Fire Code, Québec's Code de sécurité, the BC and Alberta fire codes), then require that the installed equipment be inspected and tested on a schedule, with CSA C22.2 No. 141 as the standard for battery unit equipment.

The common pattern in Canadian buildings follows the same rhythm as the US:

• Monthly: visual inspection and a short functional test of each unit and exit sign, confirming the pilot or charging light is on and the lamps switch to battery.
• Annually: a test that runs the units on battery for their rated duration, then confirms they recharge.
• Records: a log kept on site and available to the fire inspector.

Exact wording, intervals and any extra requirements vary by province and by building, so read the fire code section your local fire department applies, or ask them directly. In a building with a central generator or central battery system rather than self-contained units, the testing falls under a different standard and usually belongs to an electrical contractor.

How to run the monthly test

A monthly walk does not need special tools for self-contained units. A workable routine:

1. Keep a numbered list of every emergency light and exit sign by floor and location.
2. At each unit, check that the charging or pilot indicator is lit.
3. Press and hold the test button for at least 30 seconds. Confirm every lamp head comes on and stays bright.
4. For exit signs, confirm both faces are lit, the lettering is readable, and any arrows point the right way after recent layout changes.
5. Look for cracked lenses, heads aimed at the ceiling, units blocked by new shelving or signage, and loose mounting.
6. Write the result for each unit: pass, fail, and what failed.

In a mid-size office floor this takes well under an hour. Doing it on the same week each month keeps the log tidy and makes gaps obvious.

How to run the annual full-duration test

The annual test drains the batteries, which means the building has reduced emergency lighting for the next several hours while they recharge. Schedule it outside occupied hours, or test half the units one day and the other half the next. Start a timer when the units switch to battery and walk the route at the end of the required duration (90 minutes under NFPA 101, the rated duration in Canadian buildings). Every unit that went dark or became too dim to light the path is a fail.

After the test, check that each unit's charging indicator comes back on. A unit that never shows charging again usually has a failed charger board rather than a bad battery.

What fails, and who fixes it

Most failures found on these tests are simple:

• Dead or weak batteries. The single most common failure. Sealed lead-acid and nickel-cadmium batteries in emergency units typically last several years, and their life shortens in hot ceiling spaces. A like-for-like replacement battery from the same manufacturer is routine maintenance.
• Burnt lamps or failed LED heads. Replaced with the matching part.
• Damaged lenses, loose mounts, misaimed heads. Simple hardware work.
• Exit sign faces with outdated arrows after a renovation. Swapping a directional panel is usually straightforward.

Work that belongs to a licensed electrician:

• Replacing a whole unit that is hardwired to a branch circuit, in most jurisdictions.
• Adding units where a layout change created a dark spot on the egress path.
• Anything involving a central battery system, a generator transfer switch, or the circuit feeding the units.
• Units that fail to charge because of a wiring or circuit problem rather than the unit itself.

At Steadle, emergency-light battery and lamp swaps are part of our bulb and ballast relamping work for buildings in Toronto, Chicago and across North America, and we flag anything that needs an electrician in the written scope rather than guessing at it. If your building also has door closers on fire-rated egress doors, our note on ADA door closer and opening force rules covers the related limits.

Keeping the paperwork inspector-ready

A fire inspector mainly wants to see three things: a list of every unit, a dated monthly entry for each, and an annual full-duration result. A simple spreadsheet or a clipboard binder kept near the fire panel works. Record the date, the person who did the test, each unit's result, and the date any failure was fixed. A failure logged without a repair date is the entry most likely to draw a written order.

Fall and winter are a good time to get the log current. Storm season brings more power outages, shorter days mean more of the building relies on artificial light, and a battery that barely passed in July often fails once a cold loading dock or unheated stairwell gets involved.

Frequently asked questions

How often do emergency lights need to be tested?

Most codes call for a short functional test every month and a full-duration test once a year. Under NFPA 101 that means 30 seconds monthly and 90 minutes annually. Canadian fire codes follow a similar monthly and annual pattern, with the annual test run for the unit's rated duration.

Can our maintenance staff do the monthly emergency light test?

Yes. The monthly functional test on self-contained units is a visual check and a button press, and building staff or a maintenance contractor can do it as long as the results are recorded. Repairs to the circuit, or replacing hardwired units, should go to a licensed electrician.

How long do emergency light batteries last?

Sealed lead-acid and nickel-cadmium batteries in emergency units commonly last a few years, and heat shortens that. The manufacturer's label usually gives an expected service life. The annual full-duration test is the real check, since a battery can pass a 30-second test and still fail long before the required duration.

Do self-testing exit signs still need monthly checks?

They still need someone to look at them. Self-diagnostic units run their own tests and show a fault indicator, but a person has to walk the building, read those indicators, and keep the record that the fire inspector will ask for.

Get your emergency lighting fixes batched

If your monthly walk turned up dead batteries, dark exit signs or loose heads, send the unit list and photos through the quote form. We return a written scope that separates the battery and lamp swaps we handle from anything that needs an electrician, and we can fold them into a scheduled preventive visit with the rest of your small repairs.