Inyo County

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, but only for unincorporated Inyo County. The City of Bishop (the county's only incorporated city) is a separate AHJ. 95% · adopting regulation
• What does this authority permit itself, and what does it delegate? Both — Building AND Electrical, self-performed in-house by the county's Public Works Department (Building & Safety Division). Not delegated to a private plan-check/inspection firm. 90% · adopting regulation
• Is a permit required for a residential rooftop PV system? Yes. The county's own Building & Safety FAQ lists 'Solar (Roof and Ground Mount)' among the items requiring a building permit. 95% · department page
• Is there a separate electrical permit, or is it combined? Separate — the county's Building Permit Application has a distinct 'Electrical Permit' fee line separate from 'Building Permit' and from the 'Solar' line item. 80% · permit schedule
• Is a HOA or architectural approval required first? Not generally, for ordinary residential rooftop PV. Title 18 (Zoning) has an 'Architectural Design Review Board' but it is scoped to the county's 'D' (Architectural Design Review) zoning district and a separate 'Lone Pine Architectural Review Board' (a Lone Pine community-specific review, $200 fee) — neither is a general county-wide requirement, and the county's predominant residential (R) districts are not shown to carry this overlay. 62% · ordinance
• Is there a historic-district review? No dedicated historic-district review ordinance reaching residential PV was found. Title 18's only 'historic' references are (a) an exclusion criterion in the ministerial two-unit (SB 9-style) development ordinance and (b) a siting exclusion in the small-wind-energy-system chapter — neither is a general historic-review gate on rooftop solar. 72% · ordinance
• Is a wind or windstorm certification required? No TDI-style windstorm certification exists, but the county DOES carry its own codified structural wind-load design criterion, county-wide for the unincorporated area: 85 MPH sustained winds with 110 MPH 3-second gusts (Title 14 §14.08.130), adopted as a local amendment because Title 24's base wind provisions were found inadequate for the county's 'remote mountain terrain' and 'high winds.' 88% · ordinance
• Is a Specific Use Permit or Council approval ever required? Not for a standard residential rooftop PV retrofit (a ministerial building permit). Council/Planning-Commission-level approval (a 'Renewable Energy Permit' under Title 21) is required only for a utility-scale 'facility' (a photovoltaic or solar-thermal powerplant transmitting power off-site) — Title 21's own definitions expressly exclude a 'solar energy system' (Civil Code §801.5(a)(1)-(2) / Gov. Code §65850.5) from the 'facility'/'powerplant' definitions that trigger that permit. 85% · ordinance

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 or an owner-builder may pull the permit/apply. 78% · ordinance
• Is a homeowner permitted to self-install and self-permit? Yes — the county's own Building Permit Application contains the standard California owner-builder declaration (Business & Professions Code §7044), allowing an owner to do the work themselves or through employees without a licensed contractor. 82% · ordinance

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? General (not PV-specific) plan-check package per the county's 'Items Needed for Plan Check' checklist: plans at least 18"x24", 3 sets, title block (name/address/owner/APN/contact), compliance with W.U.I. standards, a site plan showing distances/existing structures/street/direction arrows/lat-long, a topo drawing, exterior elevations (existing & proposed), a Title 24 calculations page, sewer type/tie-in, an electrical plan page, a plumbing plan page, an HVAC page, and — if applicable — a fire-sprinkler plan approved by Cal Fire. No PV-specific submittal checklist exists. 72% · published checklist
• How many copies, and in what format? 3 sets, printed on at least 18"x24" paper. 80% · checklist
• Is a site plan required, and what must it show? Yes. The plot plan/site plan must show property lines and dimensions, distances from property lines to all proposed and existing structures/improvements, sewer lines, wells and/or points of connection to public utilities (sewer, electricity, water), drawn to scale. 78% · checklist
• Is a structural PE stamp required, and at what threshold? No fixed kW/psf threshold stated. Per Title 14 §14.08.050, engineered-design plan review (in-house or contract engineering consultant, Building Official's discretion) is triggered case-by-case whenever a submittal exceeds conventional light-frame construction provisions for seismic design, wind load, or ground snow load; ALL commercial structures require engineered plancheck regardless. 80% · ordinance / checklist

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? None. Inyo County has no online building-permit portal. Applications are submitted by email (buildingandsafety@inyocounty.us) or in person; the only 'permit' portal linked from the Building & Safety page (inyoso.permitium.com) is the Sheriff's Office concealed-weapon (CCW) permit application system, unrelated to building permits. 85% · portal landing page
• Can the whole application be completed online? No. The application itself is submitted by email/in person, not online; the only genuine online form on the Building & Safety pages is a post-issuance Inspection Request form. 82% · portal
• How is the fee calculated? Valuation-based (inferred). The Building Permit Application's Permit Cost Summary computes a 'Building Cost Total' and separately assesses state-mandated valuation-based surcharges (SMIP, Building Standards Revolving Fund) alongside the itemized Building/Electrical/Plumbing/Mechanical/Solar permit lines — this is the standard California ICC-valuation-table fee structure, though the county's actual fee resolution/table was not found published online. 70% · fee schedule
• Is there a separate plan-check fee? Yes. 'Plan Check' is a distinct line item from 'Building Permit' on the county's own Permit Cost Summary; the Planning Department separately lists a 'Building Permit Plan Check Fee' deposit of $50. 78% · 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.

• How long is an issued permit valid before it expires? Two different windows appear in the county's own documents: the Building Permit Application states a permit becomes void if work is not commenced within 180 days (one year for residential) of issuance or is suspended/abandoned for 180 days; separately, Title 14 §14.04.060 states plan-check applications void after 12 months without permit issuance, and issued building permits void 36 months after issuance absent a written extension request. Both are reported as the county has not reconciled them into a single stated figure. 78% · ordinance
• Which utility handles interconnection here? Southern California Edison (SCE). 90% · utility territory map + city source

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, via the county's evergreen adoption of 'the most recent version of Title 24' (Title 14 §14.08.030) — the 2025 California Electrical Code (based on the 2023 NEC) took effect statewide 1 Jan 2026. 80% · adopting ordinance
• Which building code edition is in force? 2025 CBC (California Building Code, Title 24 Part 2), effective 1 Jan 2026 — via the same evergreen §14.08.030 adoption clause. 80% · adopting ordinance
• Which fire code edition is in force? 2025 California Fire Code (Title 24 Part 9), by the same evergreen 'all Parts of Title 24' adoption in §14.08.030 — Title 14 has no separate fire-code chapter of its own and no county fire department exists to publish an independent citation; enforcement for unincorporated-area life-safety/fire-code compliance is per-parcel (see jurisdiction notes). 65% · adopting ordinance
• Are there local amendments to any of the above? Yes. Title 14 §14.08.020 (Express Findings) states local amendments are 'reasonably necessary because of local climatic, geological or topographical conditions, including snow loads, freezing temperatures, high winds, and remote mountain terrain' and are 'more restrictive' than base Title 24 — codified as the elevation-banded Snow Load Design Criteria (§14.08.120) and the county-wide Wind Load Design Criteria (§14.08.130). 95% · ordinance
• What is the installation judged against? The most recent Title 24 cycle (CBC/CEC/CFC), PLUS two express county local amendments that reach a rooftop or ground-mount PV installation's structural design: the Inyo County Snow Load Design Criteria (elevation-banded table, §14.08.120) and the Inyo County Wind Load Design Criteria (85 mph sustained / 110 mph 3-sec gust, §14.08.130); the entire unincorporated county is also designated a Wildland-Urban Interface Fire Area (§14.08.140). 88% · ordinance

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? No local amendment to roof-access-pathway or ridge-setback rules was found anywhere in the county's own code (Title 14 has no fire-code chapter of its own; its only fire/WUI-related local content is the defensible-space clause at §14.08.140, which addresses vegetation/vent clearance, not roof pathways). The unamended, evergreen 2025 CFC §605.11 pathway/setback provisions would apply by default via §14.08.030's blanket Title 24 adoption. 65% · fire code + amendments

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? Not locally amended. Rapid shutdown would be governed by NEC §690.12 as adopted through the state's evergreen Title 24/CEC cycle (currently the 2023 NEC via the 2025 CEC). No county-published PV handout or amendment addressing rapid shutdown was found. 55% · NEC edition in force

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? None published by the county. No placard/disconnect-marking specification of any kind (wording, size, colour, material) appears anywhere in Title 14 (Building) or Title 18 (Zoning) — a controlled absence. Base NEC/CFC §705.10-style labeling requirements would apply by default via the evergreen Title 24 adoption, unamended. 68% · ordinance / utility spec
• Does the authority specify placard wording of its own? No — the county does not specify placard wording of its own; none found anywhere in Title 14 or Title 18 (controlled absence, see Q38). 68% · ordinance
• Does it specify letter height, colour or material? No — no county-specified letter height, colour, or material requirement exists for any PV/electrical placard (controlled absence, see Q38). 65% · ordinance
• Is a site plan / facility map placard required, and what must it show? No county-specific site-plan/facility-map placard requirement beyond the general plot-plan submittal (property lines, dimensions, distances to structures and utility connection points) required for any building permit; no PV-specific facility-map placard rule found. 60% · 705.10 + local
• Where must the labels be placed? No local placement rule found; would default to unamended NEC §690/§705 placement requirements via the evergreen Title 24 adoption. No county PV handout exists to check for a location-specific rule. 55% · ordinance / utility spec

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.

• Are batteries permitted, and under what conditions? No battery/ESS-specific ordinance provision exists at the county level. 'Battery' and 'energy storage' return zero hits across the complete text of Title 14 (Building), Title 18 (Zoning), and Title 21 (Renewable Energy Development) — the three county code titles that would plausibly govern construction, siting, or energy systems. 80% · fire code + amendments
• Is there a separate ESS permit or inspection? No — no separate ESS permit or inspection process is codified; see Q45 (same controlled absence). 78% · ordinance
• Is a ground mount treated as a structure? Effectively yes for permitting purposes — the county's own Building & Safety FAQ explicitly lists 'Solar (Roof and Ground Mount)' as requiring a building permit, treating a ground-mount system the same as any other permitted structure/installation. No separate zoning definition, setback, or height rule specific to a ground-mounted PV array was found in Title 18 (the zoning code's only 'ground mount'/'freestanding' hits concern signs and wireless-communications facilities, not solar) — so while a permit is unambiguously required, no PV-specific structural/zoning treatment as a distinct 'structure' category exists. 70% · ordinance
• Is there a local rule on service upgrades or busbar sizing? No local busbar-sizing or service-upgrade amendment exists for solar. Title 14 (the county's complete Building & Safety Ordinance, including its Utility Connection provisions at §§14.08.100-110) returns zero hits for 'busbar', '225', '200 amp', 'NEC', 'National Electrical', or '690.' — a controlled, full-document absence, not a failure to look. 80% · amendments
• Is a specific mounting system or attachment spacing required? No PV-specific mounting-system or attachment-spacing standard (e.g. a fixed inches-on-center figure) is published. What IS codified is the trigger for engineered design: per §14.08.050, any submittal exceeding conventional light-frame provisions for wind load or ground snow load requires plancheck by in-house or contract engineers — meaning a PV mounting rack in a high-snow-load community (e.g. Bishop Creek/Whitney Portal/Aspendell/Glacier Lodge at 100 PSF) or subject to the county's 110 mph 3-second gust wind criterion would need engineered, stamped calculations rather than a prescriptive table. 65% · amendments

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 (760-873-7857) or email to named staff, or the county's own web-based Inspection Request form (which asks for permit type — County of Inyo, City of Bishop, or County and City — permit number, contractor info, address, and inspection type). 80% · 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? Yes — self-performed in-house. No third-party inspection firm was found anywhere (staff directory, application forms, or fee-schedule appendix); named in-house inspectors are Tyson Sparrow, Cindy Truelsen and James Feeney, all on the @inyocounty.us domain. 82% · department page
• If delegated, to whom? N/A — not delegated. The county performs its own final solar inspection in-house (see Q52). 80% · 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.

Nothing recorded for Inyo County on this step yet — 2 questions checked and found unpublished. The guidance above is general.

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? No. No PV-specific inspection checklist is published anywhere on the county's Building & Safety or Request Inspection pages — the only published document is the general pre-permit 'Items Needed for Plan Check' handout, which is not an inspection checklist. 70% · department page

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.

Nothing recorded for Inyo County on this step yet — 4 questions checked and found unpublished. The guidance above is general.