Electrical Inspection Schedule Required Under IRC 2024

Quick Answer

Under IRC 2024 Section E3403, electrical work requires a minimum of two inspections: a rough-in inspection before any wiring is concealed, and a final inspection when all work is complete and the installation is ready for use. Larger projects or service entrance work may also require a separate service inspection. Each inspection must be approved before the next phase of construction proceeds.

Under IRC 2024, calling for inspections in the right sequence — and ensuring the work is genuinely ready before the inspector arrives — is critical to keeping a construction or remodel project on schedule.

What IRC 2024 Actually Requires

IRC 2024 Section E3403.1 requires that the authority having jurisdiction (AHJ) be notified at specific stages so that the electrical installation can be inspected and approved before it is covered, concealed, or put into service. The code identifies two mandatory notification points: the rough-in stage, when all wiring is in place but before any wall coverings or insulation conceal the conductors, and the final stage, when all electrical work is complete and the installation is ready for use.

Section E3403.2 specifically addresses the service inspection. Where the electrical service entrance, service equipment, or meter enclosure is installed or replaced, the utility and the AHJ must both be notified before the service is energized. In most jurisdictions, the AHJ issues a service release or power release letter to the utility only after the electrical inspection approves the service entrance equipment, grounding, and bonding. The utility will not energize the service until it receives that release.

In practice, the inspection sequence for a new single-family home typically includes: (1) a temporary service inspection when construction power is needed; (2) a rough-in inspection of all branch circuit wiring, including boxes, conductors, and grounding before drywall; (3) a service inspection of the main panel, service entrance conductors, meter enclosure, and grounding electrode system; and (4) a final inspection of all devices, fixtures, and equipment after completion. Some jurisdictions combine the service and rough-in inspections into a single visit where the service equipment is installed and rough-in wiring is complete at the same time.

For remodels and additions, the inspection sequence is the same but scope-limited to the permitted work. A basement finish with new circuits requires a rough-in inspection before the basement ceiling is closed and a final inspection when all outlets, fixtures, and devices are installed. A panel replacement requires only a service inspection at the panel and a final sign-off when all connections are verified complete.

Why This Rule Exists

The inspection sequence is designed around one principle: electrical work must be inspected before it is hidden. Once drywall covers a wall cavity, or a finished ceiling conceals junction boxes, or landscaping buries underground conduit, the only way to verify compliance is to open the structure. That is expensive for the homeowner, disruptive to the project schedule, and likely to result in a conflict with the contractor. The rough-in inspection eliminates the need for that scenario by requiring the inspector’s approval before concealment occurs.

Electrical fires caused by concealed defects are particularly dangerous because the fire ignites inside a wall cavity, propagates through the wall framing, and may burn for minutes or hours before breaking through a finished surface where a smoke detector can detect it. An inspector who catches improper connections, undersized conductors, or missing box supports at rough-in prevents those defects from becoming ignition sources inside finished walls.

The service inspection serves a separate safety function: verifying that the connections between the utility transformer and the home’s wiring system are correct and safe before full utility voltage is applied. Errors in service entrance conductor sizing, service entrance cable installation, meter enclosure installation, or grounding electrode connections can produce equipment damage or arc-flash events when the meter is set. Requiring AHJ approval before energization puts a qualified set of eyes on these connections before they are live.

What the Inspector Checks at Rough and Final

At the rough-in electrical inspection, the inspector verifies: all branch circuit conductors are properly sized for their overcurrent protection device; wiring is run in an approved wiring method for the location (NM cable in dry interior walls, LFMC or conduit in wet or exposed locations); boxes are properly secured, accessible, and not overcrowded (box fill must comply with NEC 314); all conductors entering boxes have appropriate cable connectors or conduit fittings; penetrations through top and bottom plates are properly protected with nail plates where required; cables are properly supported at required intervals; all conductors are properly identified (white neutrals, green or bare grounds, colored ungrounded conductors); and all circuits requiring AFCI or GFCI protection are identified on the panel schedule.

At the final electrical inspection, the inspector verifies: all devices (receptacles, switches, dimmers) are installed and functional; all luminaires are installed with proper clearances and are listed for the application; the panelboard directory is completed with a legible description of each circuit; all required AFCI breakers are installed and test correctly; all required GFCI devices are installed in required locations and test correctly; the main panel is properly labeled with voltage, ampacity, and manufacturer information; the service disconnect is accessible and properly identified; grounding and bonding connections at the panel are complete; and all EV chargers, kitchen appliances, or HVAC equipment covered under the electrical permit are installed and connected correctly.

What Contractors Need to Know

The single most common cause of project delay related to electrical inspections is calling for rough-in before the work is genuinely ready. An inspector who arrives to find junction boxes without covers, cables without connectors, or conductors that were supposed to be run but are not yet in the wall has two options: fail the inspection and reschedule, or approve only the portions that are ready. Most inspectors will fail the job, requiring a new inspection request and waiting period. The reinspection fee is usually 50 to 100 percent of the original inspection fee. Build inspection readiness checks into your project workflow.

Coordination between electrical and other trades at rough-in is critical. Rough-in inspection typically happens after framing, after rough HVAC ductwork, and at the same time as rough plumbing and mechanical inspections (often combined into a single rough-in inspection event in some jurisdictions). Know your local AHJ’s inspection combination policies and schedule accordingly. If you are the electrical subcontractor, confirm with the general contractor that rough-in inspection is scheduled and that all other rough-in trades are also ready.

For service inspections, notify the utility company at the same time you notify the AHJ. The utility typically has its own inspection process for the meter enclosure, service entrance cable, and weatherhead or conduit head. The utility’s inspection and the AHJ’s inspection are separate; both must be completed and approved before the utility will set the meter. On new construction, the utility may need four to six weeks’ lead time for service installation. Scheduling the AHJ service inspection without coordinating with the utility first can result in an approved inspection but no power because the utility has not set the meter.

What Homeowners Get Wrong

Homeowners doing their own electrical work (where permitted) often miss the rough-in inspection window. The most common scenario: a homeowner runs new wiring in a basement, finishes drywalling the ceiling to make the space look good before calling for inspection, and then discovers that the inspector cannot approve the work without seeing behind the drywall. The fix requires cutting inspection holes, which add labor and patch work to the project.

Another frequent mistake is assuming that electrical inspection approval automatically means the work is safe. The inspector reviews a snapshot of the work at the time of inspection — they cannot see everything, and in a busy jurisdiction they may have limited time per inspection. The permit and inspection process provides an important safety check, but it is not a substitute for doing the work correctly in the first place. Homeowners should read and understand the relevant code sections before starting work, not after.

Homeowners also sometimes confuse permit issuance with inspection scheduling. Getting a permit does not schedule an inspection. The permit authorizes the work to begin. Inspections must be requested separately — typically by phone, online, or through the jurisdiction’s inspection request portal — usually 24 to 48 hours before the desired inspection date. Check your permit conditions for the specific notification requirements in your jurisdiction.

State and Local Amendments

Some jurisdictions have adopted additional inspection stages beyond the IRC minimum. Los Angeles County, for example, requires separate inspections for service entrance, sub-panel feeders, branch circuit rough-in, and final, even on residential projects. New York City has its own electrical inspection program through its Department of Buildings, with inspections performed by licensed electrical inspectors rather than building department personnel.

Some jurisdictions allow third-party inspections as an alternative to building department inspections, particularly for commercial projects and in jurisdictions with inspector staffing shortages. Third-party inspectors must be approved by the AHJ, and their inspection reports must be submitted to the AHJ for final approval. This option is not universally available for residential projects, but it can significantly shorten inspection wait times in busy jurisdictions. Ask your local building department whether this option exists and what the approval process is.

Rural jurisdictions in some states have limited inspection staff and may offer only one or two inspection days per week. In those areas, scheduling inspections early in the project is essential — last-minute requests may result in two-week delays waiting for the next available inspection slot. Some states allow county building departments to contract with neighboring counties for inspection services when local staff are unavailable.

When to Hire a Professional

The inspection process itself is managed by the permit holder — either the licensed contractor or the homeowner who pulled the permit. Hiring a licensed electrical contractor shifts the burden of inspection scheduling and follow-up to the contractor, who typically has established relationships with local inspectors and knows the local inspection culture and common failure points. A contractor who regularly works in your jurisdiction will know whether the local inspector is strict about box fill, particular about nail plate requirements, or likely to approve a certain unconventional but code-compliant installation method.

Homeowners who encounter a failed inspection should read the inspector’s correction list carefully before calling a professional. Many corrections are straightforward (add a nail plate, replace a box connector, tighten a grounding lug) and can be made by the homeowner before the reinspection. However, if the correction list includes items involving panel work, service connections, or corrections that require specialized tools or knowledge, hire a licensed electrician for the corrective work. Doing so is faster and reduces the risk of a second failed inspection.

Common Violations Found at Inspection

• Rough-in wiring concealed by drywall or insulation before the rough-in inspection was called or approved, requiring destructive investigation.
• Panel installation completed and tested without scheduling a service inspection first, resulting in an uninspected energized service.
• Inspection called before all rough-in wiring for the permitted scope is complete, resulting in a failed inspection and reinspection fee.
• Final inspection called with the panelboard directory blank or illegible, failing the final over missing labels.
• Service entrance energized by utility before AHJ issued a service release, bypassing the inspection requirement.
• Underground conduit or direct-burial cable backfilled without scheduling an underground inspection first, which many jurisdictions require as a third inspection stage.
• Temporary service converted to permanent service without a separate permanent service inspection, leaving service entrance connections uninspected.
• AFCI or GFCI devices not yet installed when the final inspection is called, requiring a reinspection after installation.