The Chicago Electrical Code, codified as Title 14E of the Municipal Code, governs every electrical installation inside city limits and departs from national practice in ways that catch outsiders off guard. It adopts the 2017 National Electrical Code by reference, then overrides it with a thick layer of local amendments.1American Legal Publishing. Chicago Code – Title 14E Electrical Code The headline rules: nearly all wiring must run through metal conduit, only licensed electrical contractors may do the work, and a permit is required before any installation or alteration begins. The code took effect in March 2018 after a September 2017 adoption and continues to govern all electrical work in the city.
Metal Conduit Instead of Romex
The biggest single difference between Chicago and most of the country is the near-total ban on non-metallic sheathed cable, the plastic-wrapped wiring commonly called Romex. In the vast majority of American homes, NM cable runs freely through wall cavities. In Chicago, it’s illegal for permanent installations.
Section 14E-3-334 restricts NM cable to three narrow uses: temporary wiring for branch circuits, temporary feeders, and limited extensions to existing knob-and-tube circuits in dwelling units within buildings of three stories or fewer.2American Legal Publishing. Chicago Code 14E-3-334 – Nonmetallic-Sheathed Cable Types NM, NMC, and NMS Everything else must be enclosed in metal conduit. Approved types include rigid metal conduit, intermediate metal conduit, and electrical metallic tubing. Flexible metal conduit is allowed where connections need to accommodate movement or vibration, and the city permits flexible metal conduit in rehabilitation work behind existing walls, floors, and hard-surface ceilings in lengths up to 25 feet.3City of Chicago. Department of Buildings Self-Certification Training – Electrical
The conduit itself is part of the grounding system. Metal boxes, fittings, and tubing form a continuous equipment grounding path, so junction boxes must be metal, bonded, securely fastened, and sized to prevent overcrowding of conductors. Inspectors watch fill calculations closely, because overcrowded boxes break down insulation and build up heat.
The practical consequence for anyone budgeting a renovation is cost. Labor and materials for conduit work run substantially higher than Romex, and that gap needs to sit in the budget from day one. In exchange, the wiring resists damage during future renovations, resists rodents, and slows the spread of fire through wall cavities.
Who Is Allowed to Do the Work
Every person or business that installs, alters, or maintains wiring or equipment governed by Title 14E must hold a city electrical contractor license. The requirement covers electrical, lighting, communication, and alarm systems.4City of Chicago. Electrical Contractor License There are two license types. A general license lets the business and its employees perform any type of electrical work. A low-voltage license limits the business to Class 1, 2, and 3 remote-control, signaling, power-limited circuits, and communications circuits.
The license type is set by the exam passed by the contractor’s supervising electrician, the responsible professional on every project the company takes on.4City of Chicago. Electrical Contractor License That exam is city-administered and tests Chicago’s amendments, not just the base NEC, which is why electricians moving in from the suburbs or out of state have to relearn parts of the trade.
Homeowners cannot legally do their own electrical work in Chicago. The code requires a licensed electrical contractor for any installation or alteration, with no DIY exemption of the kind many other jurisdictions offer. Unlicensed work discovered during a sale, an insurance claim, or a routine inspection can trigger enforcement, including orders to tear out and redo the work at the owner’s expense.
Permits and Inspections
A permit is required before any electrical work begins, regardless of how small the job is. The licensed contractor usually files the application through the Department of Buildings rather than the property owner.
Simple repair-or-replace jobs, like swapping a panel or replacing fixtures, go through the Easy Permit Process, which allows online submittal and relatively quick approval. New construction, significant alterations, and changes to building systems require a Standard Plan Review with electronic submission of architectural plans and, often, review by multiple city agencies.
Once the permit is issued, the contractor is required to call for inspections at specific points. The permit holder must notify the Department of Buildings when the work is ready for a rough-in inspection, which happens after conduit and boxes are in place but before walls, ceilings, or other surfaces conceal the wiring.5Chicago Municipal Code. Chicago Code 14A-5-502.5 – Electrical Inspections An inspector verifies conduit types, box sizing, and grounding. A final inspection follows once the work is complete and energized. Closing up walls before the rough-in is one of the most expensive mistakes on a Chicago job, because the inspector can order the walls reopened.
Penalties for Working Without a Permit or License
Starting electrical work without a permit triggers an immediate stop work order. A city employee posts a warning notice on the property, and work has to halt until the owner pulls the required permit and pays the penalties.6City of Chicago. What Happens If I Start Work Without a Required Building Permit?
The surcharge scales with what the permit would have originally cost:
- Permits with a regular fee under $500: the penalty equals 100 percent of the regular fee, which effectively doubles the cost.
- Permits with a regular fee between $500 and $3,000: a 100 percent penalty on the first $500, plus $125 for each additional $500 increment.
- Permits with a regular fee over $3,000: a 100 percent penalty on the first $1,000, plus $75 for each additional $500 increment.
If the work was done by someone without a required license, an additional $1,000 penalty applies on top of the fee surcharge.7American Legal Publishing. Chicago Code 13-32-035 – Stop Work Orders – New or Revised Permit – Fees The city can also open an administrative enforcement case or lawsuit to force correction of unsafe or illegal conditions, and the property owner can be required to remove any work that can’t be brought into compliance.6City of Chicago. What Happens If I Start Work Without a Required Building Permit?
EV Charging Rules for New Buildings
Section 14E-6-625 and the city’s EV readiness ordinance now require electric vehicle charging infrastructure in new construction. The rules apply to permit applications filed on or after November 1, 2023.8City of Chicago. Requirements for Electric Vehicle Readiness
The thresholds depend on building type:
- New residential buildings with household living: 100 percent of off-street parking spaces serving dwelling units must be EVSE-ready or EVSE-installed. Each space needs conduit and wiring for a 40-amp, 208- or 240-volt dedicated circuit, terminating at a receptacle or junction box within three feet of the parking space.
- New residential buildings with group living or lodging: 20 percent of off-street parking spaces must be EVSE-ready or EVSE-installed.
- New commercial buildings with 30 or more spaces: 20 percent must be EVSE-ready or EVSE-installed.
- New commercial buildings with 29 or fewer spaces: no requirement.
Two adjacent parking spaces can share a single branch circuit. Every dedicated circuit has to be permanently labeled at both the electrical panel and the receptacle or junction box with the text “For future electric vehicle supply equipment.”8City of Chicago. Requirements for Electric Vehicle Readiness Buildings that use an energy management system to distribute charging load still have to be designed by an Illinois-licensed professional engineer and deliver at least 12 kWh to each space over an eight-hour period.
Disputing an Electrical Code Decision
Chicago’s Building Board of Appeals, which hears appeals of most permit-related decisions made by the Commissioner of Buildings, explicitly excludes electrical issues from its jurisdiction.9City of Chicago. Building Board of Appeals Electrical disputes run through a separate administrative process inside the Department of Buildings. If you disagree with an inspector over conduit methods, grounding, or any other Title 14E requirement, your contractor or supervising electrician should contact the Department of Buildings directly to find out the specific review procedure.