Shasta 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 the unincorporated area of Shasta County 95% · authority's own page
• What does this authority permit itself, and what does it delegate? Both 88% · fee schedule
• Is a permit required for a residential rooftop PV system? Yes 95% · department page
• Is there a separate electrical permit, or is it combined? Combined 70% · checklist
• Is a HOA or architectural approval required first? No 65% · checklist (absence)
• Is there a historic-district review? No 55% · department page (absence, partial)
• Is a wind or windstorm certification required? No -- California does not use a windstorm-certification program comparable to Texas TDI; wind loading is instead addressed as a structural design criterion. The county's own checklist requires designs to meet '95 mph basic wind speed' per the currently-cited 2022 Building Standards Code and the county's adopted snow-load map, verified via manufacturer data or a PE stamp, rather than a separate windstorm certificate. 80% · checklist
• Is a Specific Use Permit or Council approval ever required? Generally no for by-right residential rooftop solar; the one documented special-case review is a required glint-and-glare analysis for any system sited within the Redding Regional Airport safety zones (Inner/Outer Approach, Traffic Pattern, Horizontal, and Conical Zones) -- this is a submittal requirement, not a Use Permit or Board of Supervisors hearing. 70% · checklist
• Is there a system-size cap on residential generation? No hard kW cap stated; systems larger than 30kW trigger heightened requirements (PG&E approval plus plans prepared by a California-licensed design professional) rather than being capped or prohibited. 80% · checklist

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 70% · forms page
• Must the contractor be registered with this authority before applying? No 55% · forms page
• Is a homeowner permitted to self-install and self-permit? Yes 70% · 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? Per the county's Solar PV System Submittal Checklist (Rev 11-13-24): (1) 2 copies of an accurate plot plan (see Plot Plan Instructions); (2) a complete building permit application with Qualified Persons identified on the Installation Certification of Electrical Equipment form; (3) 2 complete sets of: manufacturer cut sheets/installation manuals, a completed Solar PV System Summary sheet, a cost breakdown of equipment/labor/structural costs, a roof plan showing panel/component layout and fire clearances, a project-specific electrical one-line diagram, mounting/racking installation data sheets, service-panel connection sizing per CEC 705 with busbar/OCPD ratings, electrical load calculations, UL field-certification if a tap is made to manufacturer components, design criteria referencing the county's wind/snow-load map, and a signage plan per CEC 690; plus (4) photos of the panel to be used for interconnection. 95% · checklist
• How many copies, and in what format? 2 copies of the plot plan (2 additional, i.e. up to 4, if outside fire-district approval is needed) plus 2 complete sets of the remaining permit documents, stapled together in a minimum 12-point font; unaltered, originally bound sets only -- loose-leaf or duplicate sets are rejected at inspection. 90% · checklist
• Is a site plan required, and what must it show? Yes. The Plot Plan Instructions for Solar PV Systems require: property owner's name, Assessor's Parcel Number, property address, north arrow and scale, the primary residence and attached structures with square footages, any accessory structure housing solar equipment, dimensioned setbacks to property lines, access roads/driveways/easements/drainages and waterways, all existing and new utility locations plus septic/well locations, and grading cut/fill areas if applicable. Separate roof-mount and ground-mount examples are provided. 95% · checklist
• Is a one-line / three-line diagram required? Yes 95% · checklist
• Are string and conductor calculations required? Yes 90% · checklist
• Is a structural PE stamp required, and at what threshold? Required for: ground-mount arrays (stamped structural analysis or manufacturer data for spans/footings/foundation); attachment directly to a metal roof without framing attachment (calculations for point loads); any commercial or non-conventional-framing structure; and any system over 30kW (plans must be 'prepared by a California licensed design professional'). Standard rafter or pre-engineered-truss roof mounts with attachments not exceeding 4'-0" o.c., staggered, may use manufacturer's site-specific data without a PE stamp, but the county 'reserves the right to require site-specific engineering for any mounting/racking system and support structure' at its discretion. 85% · checklist
• Is an electrical PE stamp required, and at what threshold? An electrical (or other California-licensed design professional's) stamp on the plans is required once system size exceeds 30kW, per the checklist's 30kW threshold; below that, standard 'qualified person' installation and load calculations suffice with no PE-electrical stamp requirement stated. 80% · 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? Two routes: (1) the county's general 'Build Shasta' online portal for straightforward permit categories (electrical, HVAC, reroof, plumbing, etc. -- solar/PV is NOT listed among the Build Shasta categories); and (2) a separate 'Instant Residential Solar and Battery Storage' program (built on the Symbium platform) for qualifying residential PV/battery projects that meet code automatically. Non-qualifying or more complex solar submittals (ground mount, >30kW, custom engineering) go through the standard paper Solar PV System Submittal Checklist process at the Permit Counter. 75% · department page
• Can the whole application be completed online? Yes for qualifying simple residential rooftop solar/battery systems via the Symbium-based 'Instant Residential Solar and Battery Storage' program (automatic issuance, no manual review or in-person visit per program description); No for systems requiring the full Solar PV Submittal Checklist (ground mount, >30kW, non-standard structural, etc.), which require an in-person/paper submittal of stapled plan sets at the Permit Counter. 60% · department page (indirect)
• What does a residential solar permit cost? No single flat fee; a residential rooftop PV permit is the sum of several line items on the Master Fee List: a Building 'Basic Permit Fee' scaled to system valuation (e.g., $28.30 for valuation $1-500, rising through tiers to $91.69 + $19.15/$1,000 for $2,001-25,000, etc.), an Electrical Permit Issuance fee of $164.06 (0.5-hr minimum, hourly), a Building plan-review/application-filing fee of 65% of the building permit fee (min. $82.03), and a Zoning Ordinance Plan Review - Residential Rooftop Solar Building Permit fee of $83.48. For a typical residential system this totals roughly $400-900 depending on declared valuation. 75% · fee schedule
• How is the fee calculated? Tiered/Valuation for the building-permit portion, plus flat/hourly add-ons (electrical issuance, plan review, and a flat zoning-review fee) -- not a single per-kW or per-panel figure. 85% · fee schedule
• Is there a separate plan-check fee? Yes 90% · 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? An application is valid 180 days from filing (extendable, in writing, up to one year total). Once issued, a permit expires the earlier of: 2 years after issuance, 180 days of no work started, or 180 days of work suspended/abandoned; a one-year renewal is available for a fee if not yet expired. 85% · department handout
• Which utility handles interconnection here? Varies by location -- PG&E is the electric utility for most of the populated unincorporated county (areas around Redding, Anderson, Palo Cedro, etc.); PacifiCorp (Pacific Power) serves portions of far-northern/rural Shasta County per its CPUC-filed California service territory, which explicitly includes 'portions of Del Norte, Modoc, Shasta, and Siskiyou counties.' The incorporated City of Shasta Lake (a separate AHJ, not part of unincorporated Shasta County) runs its own municipal electric utility. No single utility can be assigned to the whole unincorporated county without knowing the parcel's location. 60% · utility filing
• Where does the utility sit in the sequence? Before permit for systems over 30kW (checklist item 8 requires PG&E approval be obtained and included with the submittal); for smaller residential systems, permit issuance and utility (Rule 21) interconnection application generally proceed in parallel with no stated dependency in the county's own documents. 65% · checklist + inference

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? The 2022 CEC (based on the 2020 NEC with California amendments) is the edition cited in the county's current solar-specific forms (checklist Rev 11-13-24, Installation Certification Rev 11-15-24 both cite '2022 California Electrical Code'). Statewide, the 2025 CBSC triennial cycle (based on the 2023 NEC) became effective 1 Jan 2026 per the county's own '2025 California Building Standards Code' page -- but the solar-specific forms had not been updated to reflect that as of their most recent revision dates, so which edition inspectors are actually applying as of Aug 2026 is not certain from the documents alone. 70% · adopting notice + checklist (conflicting)
• Which building code edition is in force? 2022 California Building Code (Title 24, Part 2) is the edition cited in the county's current solar forms; statewide, the 2025 CBSC (effective 1 Jan 2026) has since superseded it, per the county's own '2025 California Building Standards Code' notice, though the solar-specific forms had not been visibly updated to the new cycle as of their most recent revision. 75% · adopting notice
• Which fire code edition is in force? Inferred to be the 2022 California Fire Code, following the same triennial cycle as the Building Code, transitioning to the 2025 CFC effective 1 Jan 2026 statewide; no fire-code-specific adoption page or ordinance naming an edition was located for Shasta County specifically. 55% · inference
• Are there local amendments to any of the above? Yes 80% · checklist + ordinance
• What is the installation judged against? The installation is judged against the (currently cited) 2022 California Building/Residential/Electrical Code, the county's adopted wind-speed/snow-load map, and manufacturer installation instructions/listings -- per the Solar PV System Submittal Checklist and Installation Certification of Electrical Equipment form ('installed per locally adopted codes, manufacturer's specifications and according to the installation manual'). 85% · checklist

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 Shasta-County-specific ridge-setback/pathway amendment beyond the state code was located; the county's own Wildland-Urban-Interface handout (media/3796) covers Chapter 7A/R337 exterior-material and ignition-resistance requirements but does not address rooftop PV access pathways. The applicable standard is therefore the state-adopted CRC R324.6/CFC 605.11 pathway and ridge-setback rules (e.g., two 36-inch pathways from eave to ridge, and a 36-inch ridge setback for arrays exceeding 66% of plan-view roof area) as adopted statewide, with no additional Shasta County amendment found. 55% · county handout (absence) + state code

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 per CEC 690.12, and the county's example label sheet includes a required placard reading 'PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN' at the main service panel, citing CEC Art. 690.56(C). This is tied to whichever CEC edition is currently in force (2022 CEC per the solar forms' most recent revision; see q29 for the note on the 2025 cycle transition). 85% · 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? Per the county's own Example Warning Labels page: (1) 'CAUTION: SOLAR CIRCUIT' on conduit/raceways/enclosures/junction boxes; (2) 'CAUTION: SOLAR ELECTRIC SYSTEM' on the electrical main service disconnect; (3) a shock-hazard warning label on the inverter; (4) a 'DIRECTORY PLAQUE' when the service disconnect and PV disconnect are not co-located (CEC 690.56(B)); and (5) 'PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN' on the main service panel (CEC 690.56(C)). 92% · checklist
• Does the authority specify placard wording of its own? Yes 92% · checklist
• Does it specify letter height, colour or material? The checklist specifies exact wording for each placard (see q38) but does not state a specific letter height, color, or material for county-issued signage beyond what CEC Article 690 itself requires; item 3K only requires 'a complete signage plan ... per CEC 690 (see example).' 70% · checklist
• Is a site plan / facility map placard required, and what must it show? Yes -- the Plot Plan (site plan) doubles as this requirement: it must show the primary residence and all accessory structures/attachments housing solar equipment (panels, inverters, disconnects, rapid shutdown, batteries, sub-panel, main service panel) with square footages, plus access roads, utilities, and setbacks. 85% · checklist
• Does the UTILITY specify placards beyond the AHJ's? Yes -- PG&E (the utility, not the county) publishes its own disconnect-switch specification (Greenbook Document 060559, 'Disconnect Switch Requirements for Distributed Generation Customers') covering switch type, markings, lockability, and placement, independent of the county's own placard requirements. 85% · utility DG manual
• Where must the labels be placed? Per the county's checklist, placards go on: the conduit/raceways/enclosures/junction boxes (solar-circuit label), the main service disconnect (solar-electric-system label), the inverter (shock-hazard label), the main service panel (rapid-shutdown label), and, if the PV disconnect isn't co-located with the service disconnect, a directory plaque at both locations. Separately, PG&E's own Greenbook requires its AC disconnect switch to be within 10 ft and in line of sight of PG&E's meter, mounted 48-75 inches above grade. 85% · checklist + utility DG manual

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? Per PG&E's own Greenbook (not a Shasta County rule): the AC disconnect switch must be installed between the meter and all generation sources, located within 10 feet and in line of sight of PG&E's electric meter, and if wall-mounted or pad-mounted, at a height between 48 inches (min.) and 75 inches (max.) measured to the top of the enclosure. Inverter-based systems on qualifying single-phase <=240V, <=320A self-contained socket-based meters may be exempt from a separate disconnect switch. 85% · utility DG manual
• Must equipment be on a specific approved list? Yes 85% · checklist
• Are batteries permitted, and under what conditions? Yes, under CRC R328 and CEC 706: an ESS may be installed on exterior walls, inside detached garages/accessory buildings, or inside attached garages/utility closets/storage/basements with required fire separation -- but not in sleeping rooms, closets, or spaces opening directly into habitable areas, and never a toxic-gas-emitting ESS inside a dwelling or attached garage. Max size is 20kWh per single ESS device and 80kWh total (40kWh total if sited in a utility closet/storage/basement), 3 ft separation between individual ESS units and from doors/windows (reducible if listed for it), and installation must be by a qualified person, with smoke alarms, ventilation, and vehicle-impact protection (bollards) as applicable. 95% · county handout
• Is there a separate ESS permit or inspection? Not a fully separate permit process, but a separate fee line: the Master Fee List charges 'Backup power - Residential (power wall or other battery system) $164.06' as its own item alongside the solar electrical fees, and batteries are inspected as part of the same electrical/building permit package (the ESS handout and solar checklist cross-reference each other, e.g. the one-line diagram must include battery location/venting/clearances). 65% · fee schedule
• Is a ground mount treated as a structure? Yes 90% · checklist
• Is there a local rule on service upgrades or busbar sizing? No county-specific numeric override beyond the state code: the checklist requires the service-panel side/load-side connection to be sized 'per CEC article 705 with busbar rating and main OCPD rating noted,' plus electrical load calculations for the (potentially de-rated) service panel -- i.e., standard CEC 705.12 busbar rules apply, not a stricter Shasta-specific limit. 75% · checklist
• Is a specific mounting system or attachment spacing required? Yes -- roof attachments must not exceed 4'-0" o.c. and must be staggered; rafters, pre-engineered trusses, or direct metal-roof attachment each have their own documentation requirement, and the county explicitly 'reserves the right to require engineering for any roof system regardless of the type of construction.' 90% · checklist

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 -- via the Building Division's dedicated Inspection Request Line, (530) 244-5068. 90% · 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 85% · department page
• If delegated, to whom? N/A -- final inspection is performed by the county's own Building Division inspectors, not delegated; only the pre-application plot-plan sign-off is delegated to CAL FIRE/Shasta County Fire or the applicable local fire protection district (Anderson Cottonwood, Buckeye/Redding Fire, Burney, Castella, Fall River Valley, Happy Valley, Millville, Mountain Gate, or Shasta Lake FPD, depending on parcel location). 75% · 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? Not published as a solar-specific sequence. The county's general building-inspection sequence (foundation, slab/under-floor, frame, insulation, etc., ending in Final) applies to new construction; for a rooftop PV retrofit on an existing structure, the practical sequence implied by the forms is a single Final electrical/building inspection at which the signed Installation Certification of Electrical Equipment must be presented, with a possible earlier inspection only if trenching/underground work (e.g., a ground-mount system) is involved. 55% · department page + inference
• Is a rough-in or mid-roof inspection required? No -- not stated as a requirement specific to a straightforward roof-mount retrofit; a mid-stage inspection is only implied where new construction, trenching, or a ground-mount foundation is involved. 55% · department page (absence)

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 dedicated at-inspection checklist is published separately; the Building Division's 'Inspection Guides' page (linked from every Building Division page) currently lists no supporting documents. The pre-submittal Solar PV System Submittal Checklist and the Installation Certification of Electrical Equipment form function as the closest equivalents. 60% · department page (absence)
• What must be on site at inspection? The unaltered, originally bound approved permit set (no loose-leaf or duplicate copies) must be on site at all times, and the signed Installation Certification of Electrical Equipment form must be presented to the inspector at final inspection. 85% · department page
• Does the inspector verify labels and listings? Yes 75% · 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 70% · department page (inferred for solar)
• Who notifies the utility for PTO? Installer 55% · inference from general CA NEM practice
• Is there a re-inspection fee? $164.06 per hour (listed under 'Other Inspections and Fees -- Reinspection fees Per Hour*'), described as 'the total hourly cost to the jurisdiction, whichever is greater.' 75% · fee schedule
• How are corrections issued and cleared? Corrections are issued as a written correction list at inspection; the first callback to clear listed corrections is not billed, but if the same items remain outstanding a reinspection fee is assessed and no further inspection occurs until it is paid. Reinspection fees may also apply if the inspection card/approved plans aren't available on site, access isn't provided on the requested date, or the installer deviates from the approved plans without authorization. 80% · department page