City of El Monte

A city address is usually permitted by the city, not the county — but not always, and some authorities keep building and hand electrical to someone else. Getting this wrong costs the whole submittal, because every requirement below belongs to whoever actually holds jurisdiction. Check the overlays in the same pass: an HOA, a historic district, a windstorm certification or a system-size cap can reshape the design, and all of them are cheaper to find now than after the array is laid out.

• Is this authority the AHJ for residential solar at this address? Yes 95% · AHJ's own department page
• What does this authority permit itself, and what does it delegate? Both 90% · permit application form
• Is a permit required for a residential rooftop PV system? Yes 95% · AHJ's own department page
• Is there a separate electrical permit, or is it combined? Separate 75% · permit application form
• Is a HOA or architectural approval required first? No 65% · zoning ordinance (full-text search)
• Is there a historic-district review? No 55% · zoning ordinance (full-text search)
• Is a wind or windstorm certification required? No 75% · AHJ's own department page
• Is a Specific Use Permit or Council approval ever required? Not required for a standard residential rooftop PV permit 60% · zoning ordinance (full-text search)
• Is there a system-size cap on residential generation? No system-size cap found 60% · zoning ordinance (full-text search)

Several authorities require the electrical permit to be pulled by a licensed electrician, or require the contractor to be registered with them BEFORE applying. Registration is not same-day. This is second on the list rather than fourth because it is the step most likely to stop the job before the drawings matter.

• Who is allowed to pull the electrical permit? Licensed electrician / Any contractor 90% · AHJ's own department page
• Must the contractor be registered with this authority before applying? Yes 70% · permit application form
• Is a homeowner permitted to self-install and self-permit? No 50% · AHJ's own department page

Almost everywhere wants a site plan, a one-line or three-line electrical diagram, equipment cut sheets with listings, and a structural attachment detail. Build it against the published checklist rather than the last jurisdiction you worked in — the checklist is what the reviewer marks against.

• What documents make up a complete submittal? For SolarAPP+ path: SolarAPP+ Approval Number/Approval Document (from solarapp.nrel.gov), permit application with 3 required contacts (applicant, contractor, property owner), general solar project details, and attachments per the SolarAPP+ inspection checklist. Photovoltaic plans are separately listed as a typical 'other document' on the Single-Family/ADU Submittal Checklist for conventional building permits. 85% · department how-to guide
• How many copies, and in what format? SolarAPP+ path: digital-only, no physical copies (all attachments uploaded to CSS portal). Conventional plan check: three (3) complete sets of plans, plot plan/floor plan copy at 11x17 filed with Building Division, minimum sheet size 18x24 per Single-Family/ADU checklist. 80% · published checklist
• Is a site plan required, and what must it show? Yes -- a site/civil plan is required showing north arrow, aerial/vicinity view, building footprint and roofline with dimensions to property lines, setbacks, parcel dimensions, existing utility meters, and (for new construction) grading/drainage. Photovoltaic plans are listed as an additional required document set. 85% · published checklist
• Is a one-line / three-line diagram required? Yes 70% · published checklist
• Are string and conductor calculations required? Yes 65% · inference from mandated platform requirements
• Is a structural PE stamp required, and at what threshold? Required only for SolarAPP+-ineligible systems (ground-mount, ballasted, or non-conventional framing) or systems reviewed via the conventional path; SolarAPP+-eligible roof-mount retrofits use the platform's automated structural check and do not require a separate PE stamp. 65% · published policy
• Is an electrical PE stamp required, and at what threshold? Not required for typical residential PV (under 400A/600V); Plan Check Submittal Requirements states electrical plans prepared by a licensed engineer/architect are required only 'for first-time tenant improvement and for any installation over 600 volts or 400 amperes,' a threshold a standard residential system would not reach. 70% · published policy

Most authorities now take the whole application through a portal, and several states cap or constrain what a residential solar permit may cost. Check whether plan check is billed separately before you quote the job.

• Which permit portal does this authority use? Tyler Technologies EnerGov 'CSS' (Citizen Self Service) Portal 95% · permit portal landing page
• Can the whole application be completed online? Yes 85% · department how-to guide
• What does a residential solar permit cost? Valuation-based: Permit Issuance $51.69, plus Building Permit Fee per the FY2026/2027 valuation table (e.g. $122.61 for $700-$25,000 + $31.57 per additional $1,000; more for higher valuations), plus Standard Plan Check fee equal to 85% of the building permit fee (min. $153.50) if a manual plan check applies. No separate flat 'solar' line item exists in the fee schedule; SolarAPP+ applicants additionally pay a separate NREL/SolarAPP+ processing fee outside the city fee schedule. 65% · published fee schedule
• How is the fee calculated? Valuation 85% · published fee schedule
• Is there a separate plan-check fee? Yes 70% · published fee schedule

Interconnection is a separate process from the permit and usually the longer pole. Where the utility does not depend on the permit being issued, running both at once is the single biggest saving available on a residential job.

• What is the stated plan-review turnaround? SolarAPP+-eligible projects: effectively instant (automated approval via NREL software; city permit record created in about 30 seconds after submittal). No stated business-day turnaround was found for conventional (non-SolarAPP+) plan check. 75% · department how-to guide
• Which utility handles interconnection here? Southern California Edison (SCE) 90% · city document referencing the utility
• Where does the utility sit in the sequence? After permit 85% · utility tariff (Wayback capture of SCE Rule 21, live SCE site route unreachable per known blocker)

The NEC edition a jurisdiction enforces is often a cycle behind the newest one published, and local amendments sit on top of it. Rapid shutdown, conductor sizing and labelling all change between editions, so the edition in force is the first thing to establish, not the last.

• Which NEC edition is in force? 2023 80% · adopting department notice
• Which building code edition is in force? 2025 California Building Code (Title 24), effective January 1, 2026, with 2026 County of Los Angeles Amendments 95% · AHJ's own adopting notice
• Which fire code edition is in force? 2023 Los Angeles County Fire Code (LACFC) -- a locally-amended version of the 2022 California Fire Code -- per LACoFD's own currently-published PV/ESS inspection checklist (document dated 2023-09-01). 60% · AHJ (fire) published checklist
• Are there local amendments to any of the above? Yes 90% · AHJ's own adopting notice
• What is the installation judged against? The California Electrical Code (Title 24, part of the adopted CBC/Title 24 code set) for the electrical installation itself, plus the Los Angeles County Fire Code (LACFC) for disconnect placarding, rapid-shutdown, and ESS/BIPV fire-safety requirements, plus the city's own Building/Electrical permit review for general code compliance. 80% · AHJ's own adopting notice

Ridge setbacks and roof access pathways are fire-service requirements and they constrain the array layout. They are the most common cause of a redesign after the fire department comments on a plan set.

• What ridge setback and access pathways are required? Firefighter access pathways and occupant emergency-escape-and-rescue pathways are LACFC-governed requirements for PV per LACoFD's Expedited PV/ESS page; the specific ridge-setback dimensions live in CFC Section 605.11, which is ICC-copyrighted text not retrievable in this run. 60% · AHJ (fire) department page

Which rapid-shutdown rule applies follows directly from the NEC edition in force, and the initiation device has to be at a location the fire service can reach and identify. This is inspected, and it is labelled.

• Is rapid shutdown required, and to which NEC edition? Yes -- rapid shutdown is required for PV systems (LACoFD field-verifies the RSD activation device and its placarding); the applicable NEC/CEC section is 690.12/CEC 705.10-705.20 per the current adopted electrical code cycle (see q29/q30 -- 2025 CBC cycle, 2023 NEC-based CEC as of 1/1/2026; LACoFD's still-current 2023 checklist cites the prior 2022 CEC sections 705.10/705.20). 75% · AHJ (fire) published checklist

The NEC sets a baseline for permanent markings at the service equipment and the disconnecting means. On top of that, an authority may specify its own wording, and the utility may specify more again. Where any of them writes its own text, a generic off-the-shelf label set will not pass — this is the detail most often fixed on a return visit.

• Which placards does this authority require at the service equipment? LACoFD 'Electrical Power Source Disconnect Placarding System' placards at every disconnect/rapid-shutdown-activation device for every power source (utility, PV, ESS, generator, etc.) serving the structure: an Exterior Placard on/adjacent to each panel or standalone disconnect, plus Panel-Interior Placards identifying individual switches/breakers within a panel. 90% · AHJ (fire) published guide
• Does the authority specify placard wording of its own? Yes 95% · AHJ (fire) published guide
• Does it specify letter height, colour or material? Yes -- fully specified. Exterior Placard: minimum 2in tall x 3.5in wide, weather-resistant plastic, verbiage engraved, red letters engraved into a yellow background, solid all-caps Arial font min. 24pt ('F.D.' and '#X of Y' bold min. 28pt), attached with permanent epoxy. Panel-Interior Placard: minimum 7/16in tall x 3/4in wide, same color scheme, Arial bold all-caps min. 24pt. 95% · AHJ (fire) published guide
• Is a site plan / facility map placard required, and what must it show? For ESS installations specifically, a site plan is required showing graphic locations of all ESS units, utility meters, AC & DC disconnects, inverters, automatic relays, load centers, and rapid-shutdown initiation devices (min. scale 3/32in=1ft). For PV-only jobs, a standard civil/site plan is required per the Single-Family/ADU checklist, but no separate physical 'facility map placard' beyond the LACoFD disconnect-placard system was found. 70% · AHJ (fire) published guide
• Does the UTILITY specify placards beyond the AHJ's? Yes, to a limited extent: SCE Rule 21 requires a ganged, manually-operated isolating switch near the Point of Interconnection with markings/signage 'that clearly indicates open and closed positions,' in addition to (not instead of) the AHJ/LACoFD disconnect-placarding system. 65% · utility tariff (Wayback capture, live SCE site route unreachable per known blocker)
• Where must the labels be placed? Exterior Placards: on the exterior of, or immediately adjacent to, each panel/enclosure or standalone disconnect switch that must be operated to accomplish the required disconnection (placement determined by a C-10 electrician, subject to fire-code-official approval). Panel-Interior Placards: inside the panel, next to the specific switches/breakers they identify. 90% · AHJ (fire) published guide

Where the AC disconnect must sit relative to the meter is usually the utility's rule, not the building department's. Battery storage frequently carries its own permit, its own inspection and its own fire conditions.

• Where must the AC disconnect be, relative to the meter? SCE Rule 21 does not specify the disconnect's physical location relative to the meter. The applicable rule is LACoFD's fire-code requirement (2023 LACFC Section 509.3): electrical disconnection means and rapid-shutdown activation devices for all power sources serving a structure must be located on the exterior, within 6 feet of the main service panel, on the same wall plane, and not separated from one another by walls, gates, fences, vegetation, or architectural features. 75% · AHJ (fire) published checklist
• Must equipment be on a specific approved list? Yes 80% · AHJ (fire) published checklist
• Are batteries permitted, and under what conditions? Yes, with conditions -- for Group R-3/R-4 (residential) occupancies: max 20 kWh per individual ESS unit; max 80 kWh aggregate per site; specific location/spacing rules (indoor garage vs. outdoor vs. ground); 3 ft between units; 3-10 ft from openings/lot lines/vegetation depending on feature; impact protection where subject to vehicle impact; detection/notification in attached garages; UL 9540/UL 1741 listing required; certain chemistries/toxic-gas-emitting ESS barred from R-3/R-4 occupancies entirely. 90% · AHJ (fire) published checklist
• Is there a separate ESS permit or inspection? Yes 90% · AHJ (fire) published checklist
• Is a ground mount treated as a structure? Yes (by implication) 70% · AHJ's own department page

Booking is a portal, a phone call or an email depending on the authority, and the notice required is rarely zero. Book before the work is finished rather than after — the lead time, not the work, is usually what sets the date.

• How is an inspection booked? Phone 90% · AHJ's own department page
• How much notice is required? 1 business day (24 hours) 90% · AHJ's own department page
• Are same-day or AM/PM windows offered? Yes -- 4-hour AM or PM window 85% · AHJ's own department page

Some authorities inspect their own solar work; some delegate it, and a few do not inspect the PV equipment itself at all. Who is coming determines what they will look at.

• Does this AHJ perform its own final solar inspection? Delegated 90% · AHJ (fire) department page
• If delegated, to whom? Los Angeles County Fire Department (LACoFD), Fire Prevention Division 90% · AHJ (fire) department page

A rough-in or mid-roof inspection, where one is required, has to happen before the work it covers is closed up. Missing a stage means opening something back up, and it is the most expensive kind of correction.

• Which inspections are required, and in what order? (1) City Building/Electrical final inspection (permit + SolarAPP+ checklist onsite), and (2) a separately-scheduled LACoFD Fire Prevention inspection of disconnect placarding/rapid-shutdown (and full ESS/BIPV review+inspection where applicable). LACoFD requires 'Digital Proof of Construction Permit' as a precondition to its own inspection, meaning the city permit is issued first or in parallel, with LACoFD's field check following. 75% · AHJ (fire) published checklist
• Is a rough-in or mid-roof inspection required? No dedicated rough-in/mid-roof stage documented for a standard roof-mount PV retrofit (one final inspection is the norm); a Main Panel Upgrade, if needed, is pulled as its own separate Electrical Permit and may carry its own inspection stage(s), which were not detailed in the documents reviewed. 55% · AHJ's own department page

The approved plan set, the permit, and the equipment listings should be on site and reachable. Inspectors routinely verify that installed equipment matches what was approved, and that the labels are the ones the plan set promised.

• Is there a published inspection checklist? Yes 90% · AHJ (fire) published checklist
• What must be on site at inspection? For the city inspection: permit number/address and the SolarApp+ Inspection Checklist onsite for the technician. For the LACoFD inspection: digital proof of the city construction permit (e.g., the SolarAPP+ approval/permit), disconnect placarding already in place, and LACoFD fees paid in advance. 90% · AHJ's own department page
• Does the inspector verify labels and listings? Yes 85% · AHJ (fire) published checklist

Passing gives you a final or an equivalent sign-off. That is not the same as permission to operate: PTO comes from the utility, and who tells the utility the inspection passed varies. A system left switched off for weeks is usually waiting on this handover.

• What is issued on pass? Final 75% · AHJ (fire) published checklist
• Who notifies the utility for PTO? Installer 70% · utility tariff (Wayback capture, live SCE site route unreachable per known blocker)
• Is there a re-inspection fee? $183.79 85% · published fee schedule
• How are corrections issued and cleared? Corrections are noted by the inspector on a correction notice at the time of inspection; for SolarAPP+ jobs, a required revision is first submitted through SolarAPP+ (NREL) for a revised approval document, then uploaded (with a revision application) to the city's CSS portal for staff review/acceptance; if the scope becomes SolarAPP+-ineligible, the applicant must submit the revision to the Building & Safety counter directly during business hours. 75% · AHJ's own department page