Guides
Part of Level 1 Charging for Multifamily Housing: What to Verify
Level 1 EV charging audit: keep outlets safe and accountable
Audit a Level 1 EV charging program each year: verify every outlet's electrical baseline, sample the register in the field, and test whether Level 1 still fits.
A Level 1 charging program stays safe and accountable only if someone checks it against the building. Each approved user and parking space should connect to a verified circuit, receptacle, cordset policy, electricity method and response process. The annual audit is where that connection is tested.
What to take away
- Verify the electrical baseline at each space, not once for the whole lot.
- Sample stalls in the field and compare them with the register.
- Give every discrepancy an owner and closure evidence.
- Review unmet need before adding outlets or changing to Level 2.
Verify the electrical baseline at each space
An assignment is not proof that the electrical record is still current. At each Level 1 space, confirm the points below against the panel, outlet and permit file. The authority having jurisdiction (AHJ), usually the local building or electrical department, confirms the adopted NEC Article 625 and GFCI rules.
- Verified supply voltage, typically 120 V AC
- EVSE current setting, commonly 12 A or 16 A, about 1.4 or 1.9 kW
- Receptacle type, commonly NEMA 5-15 or 5-20
- Branch-circuit rating, and whether the circuit is dedicated
- GFCI protection, as verified
- Permit, local inspection form or final inspection approval on file
Keep the one-line diagram, the panel schedule, the outlet-to-circuit map, the load review and the as-built record beside these checks. Identify the breaker, circuit, receptacle, stall, enclosure and any control or monitor, so a reviewer can walk from the panel to the stall.
Match approved equipment to its listing
For approved equipment, record the applicable product listing: UL 2594 for EVSE, UL 817 for cordsets, and SAE J1772 for the vehicle connector. Record make, model, rating, listing information, installation date, condition and inspection interval. Link every allowed cordset category to its approved input and plug.
An example register row shows how little is needed to trace a stall: outlet OUT-12, circuit Panel B / CKT 7, stall 14, resident Unit 3B, inspection date 2026-04-18. If an auditor cannot find one of those facts in the field, the row is wrong or the installation changed.
Run the annual field sample
At least annually, select several active and inactive stalls and compare the register with what is physically there. The steps keep the audit short and repeatable:
- Pick the sample, mixing active stalls, inactive stalls and any space changed since the last audit.
- Compare field labels, panel schedules, monitoring channels and resident assignments with the register.
- Check cordset approvals and the date of the last inspection.
- Note each missing ID, unexplained piece of equipment, stale assignment and overdue task.
- Assign every discrepancy to an owner and keep the closure evidence.
| Finding | Owner | Closure evidence |
|---|---|---|
| Label does not match the register | Facilities lead | Corrected label and register entry |
| Stale resident assignment | Property manager | Updated assignment with end date |
| Overdue inspection | Electrical contractor | Inspection record and retest result |
| Unexplained equipment at a stall | Property manager | Approved record or removal note |
Sample again after contractor work, parking changes, or a group of outlet replacements. An archive becomes trustworthy when it is tested against the installation, not when it simply contains many documents. A maintenance schedule can set the inspection interval the audit checks.
When a resident, vehicle, parking space or cordset changes, reopen the compatibility and route check instead of transferring the former approval automatically. A move does not carry the old approval with it, and the assignment record must be updated before use.
Keep incident and operating data usable
Retain inspections, faults, protective-device operation, heat or damage reports, cord replacements, outages, billing disputes, complaints, diagnosis, correction and retest evidence. Use timestamps and asset IDs so facilities staff can compare a resident report with the correct outlet and circuit.
Treat a heat or damage report as a safety issue first. Send it to the electrical contractor with the asset ID attached, keep the outlet out of use until it is diagnosed and corrected, and file the retest evidence beside the original report. The audit then has a closed record to find, not a loose email.
Where submetering is used, keep the meter ID, the kWh reads and their timestamps. Where it is not, keep the allocation basis and the rates or fees used to calculate charges. The Department of Energy's EV-ChART privacy assessment lists station locations, charging sessions, uptime, outages, costs and operators as non-personal information.
A property can use a smaller record set than a federal system while still keeping a consistent operating history. Store personal information with appropriate access, and record who pays, the allocation method and any per-kWh rate. The apartment EV charging costs page covers who pays in more detail.
Test whether Level 1 still fits
Record residents whose routine energy need is not met, how often exceptions occur, waitlist growth and maintenance burden. Review the program after building-load changes and before adding outlets.
The archive should explain when Level 1 works for the building, how it performs, which spaces remain suitable, and what evidence would trigger an upgrade.
When demand is not met, compare the documented Level 1 supply (120 V) with a proposed Level 2 supply (typically 208 or 240 V). Include available circuit capacity, proposed equipment, installation cost and who would pay.
The Department of Energy's EVSE training notes that planners need to understand compatibility, power ratings, and cybersecurity to assess installation properly. Superseded maps and rules stay in the archive with a revision register, so the reasoning behind each upgrade decision survives.
Common questions
Why audit a sample instead of every stall?
A sample is quick enough to repeat each year. Widen it when the first pass finds several discrepancies, and sample again after contractor work.
Should a resident move transfer the former approval?
No. The assignment record must be updated before use.
How often should the archive be tested in the field?
At least annually, and again after contractor work, parking changes, or groups of equipment replacements.
