City of Whittier

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 — City of Whittier Building & Safety Division is the AHJ for building/electrical permitting of residential rooftop PV; LACoFD is the fire AHJ for ESS and disconnect/placarding aspects (see jurisdiction block). 92% · department page (Wayback capture 2024-12-17)
• What does this authority permit itself, and what does it delegate? Both — the City permits and inspects Building and Electrical work for rooftop PV; ESS installations and PV/ESS electrical-disconnect placarding are independently permitted/inspected by LACoFD as fire AHJ (partial delegation is the opposite direction: LACoFD historically delegates conventional PV plan review to the City, retaining ESS/BIPV/disconnects for itself). 88% · AHJ guidance document (LACoFD)
• Is a permit required for a residential rooftop PV system? Yes, a permit is required for residential rooftop PV. 95% · department page (Wayback capture 2024-12-17)
• Is there a separate electrical permit, or is it combined? Combined — the City's 'Solar Permit Application' is a single application covering the PV installation (structural/mounting and electrical) as one permit; a separate general 'Electrical Permit Application' form exists for non-solar electrical work. 75% · permit application form
• Is there a system-size cap on residential generation? No blanket residential system-size cap from the City; the SolarApp+ automated-permitting track specifically excludes panel upgrades and systems over 38.4 kW (larger systems still permitted, but through the standard plan-check track rather than SolarApp+). 82% · department page (Wayback capture 2024-12-17)

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? Either — a licensed contractor (classifications A, B, C-10, or C-46) or the homeowner (as owner-builder) may pull the permit. 90% · permit application form
• Must the contractor be registered with this authority before applying? Yes — an active City of Whittier business license is required before a contractor may submit for a SolarApp+ permit, and inspections cannot be scheduled without one. 90% · department page (Wayback capture 2024-12-17)
• Is a homeowner permitted to self-install and self-permit? Yes — a homeowner may self-install/self-permit as owner-builder using the regular (non-SolarApp+) solar permit with plan check; non-licensed/owner-builders are explicitly excluded from the SolarApp+ automated track. 88% · department page (Wayback capture 2024-12-17)

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+: SolarApp+-generated approved plan/specification package, the LACFD Expedited PV/ESS Permitting Process Inspection Checklist, active City business license, and the online Solar Permit Application. For the regular (non-SolarApp+) track: Solar Permit Application, site/plot plan, contractor declarations (or Owner-Builder declaration), product spec sheets, and — where the project deviates from conventional framing — structural calculations. 78% · department page + permit application form
• How many copies, and in what format? SolarApp+/online-only track is fully digital (no paper copies). For the general (non-solar-specific) plan-check track, the City's standard is four (4) sets of 24” x 36” plans plus one 8.5” x 11” site plan and one 8.5” x 11” floor plan. 70% · department handout (PDF)
• Is a site plan required, and what must it show? Yes — a site/plot plan is required, showing an aerial/bird's-eye view of the house, property lines, adjacent streets/properties, and setbacks, with existing vs. proposed clearly distinguished; the City provides a 'Standard Plot Plan Form' for this purpose. 80% · department handout (PDF)
• Is a one-line / three-line diagram required? Not stated explicitly in any City of Whittier document found; inferred yes, since the mandatory SolarApp+ platform (nationally) requires a one-line diagram as part of its automated design submittal for every project it processes. 55% · inference from national SolarApp+ platform requirements
• Are string and conductor calculations required? Not stated explicitly in any City of Whittier document found; inferred yes for systems using the SolarApp+ automated design tool, which requires string/conductor sizing as part of its code-compliance check nationally. 50% · inference from national SolarApp+ platform requirements
• Is a structural PE stamp required, and at what threshold? No solar-specific structural PE-stamp threshold document was found. The City's general 'Plan Submittal Requirements' handout cites Cal. Bus. & Prof. Code §5537: an unlicensed person may prepare plans for wood-frame residential structures up to two stories plus basement; a licensed architect/engineer stamp is required only where the project deviates from conventional framing (which would include most non-standard/ground-mount or heavily loaded roof-mount PV projects). 55% · department handout (PDF), general (not solar-specific)

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? Accela Citizen Access (ACA) — aca.accela.com/whittier (aca-prod.accela.com/WHITTIER) — plus the SolarApp+ platform for eligible expedited residential PV permits. 95% · portal landing page (via Wayback)
• Can the whole application be completed online? Yes — as of the City's current Building & Safety page, residential Solar (including SolarApp+) is listed under permit types available 'Online Only.' 88% · department page (Wayback capture 2024-10-30)
• What does a residential solar permit cost? Capped at $450 flat plus $15 per kW for each kW above 15kW (residential/single- or two-family dwelling photovoltaic systems). 95% · fee schedule (city resolution)
• How is the fee calculated? Tiered — flat base fee ($450) plus a per-kW rate above a threshold (15kW). 95% · fee schedule (city resolution)
• Is there a separate plan-check fee? Yes — Plan Review is billed as its own line item, at 65% of the Permit Fee. 85% · fee schedule (city resolution)

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: permit issued immediately/electronically upon fee payment (no plan-review wait). Non-eligible/standard track: general City plan-check turnaround is about two weeks from the Wednesday following submittal (per the general, non-solar-specific Plan Submittal Requirements handout). 78% · department page + general handout
• Which utility handles interconnection here? Southern California Edison (SCE). 85% · department page (Wayback capture 2024-10-30)

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 NEC (adopted as the 2025 California Electrical Code, effective January 1, 2026). 88% · department page (current, Wayback capture 2026-07-12)
• Which building code edition is in force? 2025 California Building Code (and 2025 California Residential Code), effective January 1, 2026. 95% · department page (current, Wayback capture 2026-07-12)
• Which fire code edition is in force? 2023 Los Angeles County Fire Code (a locally-amended version of the 2022 California Fire Code). 92% · AHJ checklist (LACoFD, dated 2023-09-01)
• Are there local amendments to any of the above? Yes. The LA County Fire Code is a set of local amendments layered on the 2022 California Fire Code (viewable at Municode under LA County Title 32); the City's own plan-submittal handout also lists 'Whittier Municipal Code' as an applicable code alongside the state model codes, implying local building-code amendments exist in the municipal code. 72% · department handout (PDF) + LACoFD checklist
• What is the installation judged against? The 2025 CEC/CBC/CRC (state model codes) plus the 2023 LA County Fire Code, plus LACoFD's own 'ESS, PV & Disconnects for R-3/R-4' Guide for disconnect placarding, ESS spacing/impact-protection, and rapid-shutdown requirements. 85% · AHJ guidance document (LACoFD, dated 2023-09-01) + City code page

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? Modules must be set back 3 feet from exterior bearing walls, on gabled ends, 18 inches from the ridge, and 18 inches on either side of a valley. AC disconnect must be knife-switch style, located within 6 feet of the main service panel, and within sight. 78% · department page (Wayback capture 2024-12-17)

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. The City's currently-in-force code is the 2025 CEC; LACoFD's own checklist (dated 2023-09-01, one cycle behind) requires rapid-shutdown attenuation devices and associated placarding citing 2022 CEC §705.10/§705.20. 78% · AHJ checklist (LACoFD, dated 2023-09-01)

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? The LACoFD 'Electrical Power Source Disconnect Placarding System': an Exterior Placard (for walls/exterior of electrical panels/enclosures) and a Panel-Interior Placard (for identifying specific switches/breakers within a panel). 95% · AHJ guidance document (LACoFD, dated 2023-09-01)
• Does the authority specify placard wording of its own? Yes. Exterior Placard reads 'F.D. – ELECTRICAL BLDG DISCONNECT #X of Y'; Panel-Interior Placard reads '#X'; X and Y are filled in per-site by a C-10 electrician subject to fire-code-official approval. 95% · AHJ guidance document (LACoFD, dated 2023-09-01)
• Does it specify letter height, colour or material? Red letters engraved into a yellow background. Exterior Placard: min. 2" tall x 3.5" wide, weather-resistant plastic, verbiage engraved, solid all-caps Arial, min. font size 24 ('F.D.' and '#X of Y' min. font size 28, bold). Panel-Interior Placard: min. 7/16" tall x 3/4" wide, weather-resistant plastic engraved, solid all-caps Arial bold, min. font size 24. Attachment by permanent, material/weather/surface-compatible epoxy. 95% · AHJ guidance document (LACoFD, dated 2023-09-01)
• Where must the labels be placed? Exterior Placards go on/immediately adjacent to each panel/enclosure or standalone disconnect switch that must be operated. Panel-Interior Placards go inside a panel identifying specific switches/breakers when multiple switches in one panel must be operated. All placarded disconnects for electrical hazards must be located within 6 feet of the main service panel, on the same wall plane, not separated by walls/gates/fences/vegetation/architectural features, and accessible from the exterior of the structure. 90% · AHJ guidance document (LACoFD, dated 2023-09-01)

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? Electrical-disconnection means and rapid-shutdown activation devices for all power sources must be on the exterior, within 6 feet of the main service panel, on the same wall plane, and not separated from the panel by walls, gates, fences, vegetation, or architectural features (case-by-case exceptions require fire-official-approved signage). 85% · AHJ checklist (LACoFD, dated 2023-09-01) — utility source unreachable
• Must equipment be on a specific approved list? For ESS: yes — individual units (or all components) must carry UL 9540 listing, and inverters must carry UL 1741 listing (or an equivalent listing bundled into the UL 9540 listing). Units listed solely for utility/commercial use may not be used for residential applications. For PV generally: 'product listings' are named as an aspect the LACoFD checklist covers, without naming a specific approved-products list. 80% · AHJ checklist (LACoFD, dated 2023-09-01)
• Are batteries permitted, and under what conditions? Yes, batteries/ESS are permitted subject to conditions: max 20 kWh nameplate rating per individual unit; aggregate cap of 80 kWh per site and per location category (inside attached garage, inside detached garage, outdoors on exterior wall, outdoors on the ground); 3-ft spacing between individual units; 3-ft minimum clearance from openings into habitable/occupiable space; 5-ft from lot lines/public ways/other buildings/combustibles; 10-ft from vegetation; impact protection where subject to vehicular impact; detection/notification for garage-installed ESS; UL 9540/1741 listing. ESS is prohibited inside dwelling units, sleeping units, closets, bathrooms, basements, and non-garage accessory structures absent an approved alternate means (AMMR). 95% · AHJ checklist (LACoFD, dated 2023-09-01)
• Is there a separate ESS permit or inspection? Yes — ESS installations with a capacity over 3 kWh require a separate LACoFD Fire Prevention Division inspection/approval (invoiced separately from the City), in addition to the City's own building/electrical permit and inspection. 92% · AHJ checklist (LACoFD, dated 2023-09-01)
• Is there a local rule on service upgrades or busbar sizing? No city-specific busbar-sizing amendment found beyond standard NEC/CEC practice; the City does require SCE ('Edison') approval of location before a residential Electrical Service Upgrade permit is issued. 65% · department page (Wayback capture 2024-10-30)

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 or the City's online Permits and Inspections portal for the City's building inspection; for the LACoFD (disconnect/ESS) inspection, applicant must call the nearest LACoFD Regional Inspection Office to schedule. 85% · department page (current, Wayback capture 2026-07-12)
• How much notice is required? At least one business day advance notice for the City's inspection ('be sure to arrange at least one business day in advance'), though workload may require more lead time. LACoFD notice requirement not separately stated. 80% · department page (current, Wayback capture 2026-07-12)
• Are same-day or AM/PM windows offered? No dedicated AM/PM window system found; the City's building inspectors are available by appointment roughly 3:00–4:00 PM, Monday–Friday. 65% · department page (Wayback capture 2024-10-30)

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 (in part) — the City performs its own final building inspection, but LACoFD independently performs the electrical-disconnect/placarding/rapid-shutdown inspection (and ESS inspection where applicable) as a precondition of use. 90% · department page (Wayback capture 2024-12-17)
• If delegated, to whom? Los Angeles County Fire Department (LACoFD), Fire Prevention Division. 95% · AHJ contact list (LACoFD, dated 2023-09-01)

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) LACoFD inspection of electrical-disconnect placarding, rapid-shutdown devices, and ESS (where applicable), scheduled directly with the jurisdictional LACoFD regional office; passing this inspection functions as an operational permit at R-3/R-4 occupancies. 2) City of Whittier Building Division final inspection, requested via phone or the online portal, with the approved SolarApp+/permit paperwork and job card on site. 85% · department page (Wayback capture 2024-12-17) + LACoFD checklist

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 — the LACoFD 'Expedited PV/ESS Permitting Process — Inspection Checklist' is a published, downloadable, dated (2023-09-01) 5-page checklist covering ESS, PV, and disconnect placarding. 95% · AHJ checklist (LACoFD, dated 2023-09-01)
• What must be on site at inspection? For the City inspection: the job card and approved/stamped plans, kept out of sun/weather, must be available to the inspector. For the LACoFD inspection: digital proof of the construction permit obtained via the expedited process (e.g. SolarApp+) including any inspection checklist provided with the permit, disconnect placarding already in place, and LACoFD fees paid. 88% · department page (current) + LACoFD checklist
• Does the inspector verify labels and listings? Yes — the LACoFD inspection checklist explicitly verifies disconnect placarding is in place, and requires ESS cut/spec sheets and UL 9540/1741 listings be immediately available on request. 88% · AHJ checklist (LACoFD, dated 2023-09-01)

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 — a passed final inspection on the building permit; at R-3/R-4 occupancies, a passed LACoFD inspection separately 'serves as an operational permit' for the ESS/PV disconnect scope, conditioned on other AHJs (City/utility) also signing off. 78% · department FAQ page (Wayback capture 2025-08-15)
• Is there a re-inspection fee? $141.00/hour (1-hour minimum), charged after the 3rd correction of the same item, for City re-inspection/re-plan-check. LACoFD's own inspection is a separately invoiced fee-for-service; no distinct LACoFD re-inspection rate was found. 80% · fee schedule (city resolution)
• How are corrections issued and cleared? Inspector records results on the job card and issues a correction notice for items that must be completed before the next phase of work; if plan-check corrections are needed, applicant picks up marked-up plans, makes corrections, and resubmits the original marked-up set plus three new sets for recheck (about 1 week turnaround, per the general — non-solar-specific — plan-check handout). 78% · department page (current) + general handout