City of Dunsmuir

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 92% · code of ordinances
• What does this authority permit itself, and what does it delegate? Both 76% · department page
• Is a permit required for a residential rooftop PV system? Yes 90% · code of ordinances
• Is there a separate electrical permit, or is it combined? Combined 50% · department page
• Is a HOA or architectural approval required first? Yes, conditionally — DMC 15.08.050 requires 'all applications for construction, addition or remodel of single family residences' to 'show evidence of review by any architectural review committee or other body so authorized to review plans as provided in any applicable covenants, conditions and restrictions,' i.e., if the parcel's CC&Rs establish an HOA/architectural review committee, evidence of that private review must accompany the city application. This is a city-mandated recognition of private HOA review, not a city design-review board of its own for non-historic properties. 78% · code of ordinances
• Is there a historic-district review? Yes, but geographically narrow — DMC Ch. 17.68 (Historic Preservation, adopted by Ord. 575, 6-29-2023) requires Planning Commission review (a discretionary 'Historic Site Alteration Permit,' $745 fee) before any permit issues for 'construction, relocation, modification, or demolition of a historic resource or... any material change to a historic resource,' with the same review extended to any property within a 300-ft buffer zone of the district. The one designated district — the 'Dunsmuir Historic Commercial District' — is described in the ordinance itself as 'the historic commercial core of the city' (roughly four blocks bounded by Sacramento Ave., Dunsmuir Ave., Pine St. and Cedar St.), plus one landmark (the California Theatre). No solar/PV carve-out was found anywhere in Ch. 17.68. For a residential rooftop system, this chapter would only be triggered if the home is inside the historic district/landmark or within its 300-ft buffer — most Dunsmuir residential parcels are outside that footprint, but the ordinance as written does not exempt solar even there. 70% · code of ordinances
• Is a wind or windstorm certification required? No 80% · absence confirmed against department page and code
• Is a Specific Use Permit or Council approval ever required? Only in the historic-district/landmark/buffer-zone case — see Q25: a 'Historic Site Alteration Permit' is a discretionary Planning-Commission-level approval (with public hearing) required by DMC 17.68.110 for a qualifying property. Outside that footprint, no Specific Use Permit or Council approval requirement for standard residential rooftop PV was found anywhere in the zoning or building code. 65% · code of ordinances

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 50% · code of ordinances
• Must the contractor be registered with this authority before applying? Yes 62% · code of ordinances
• Is a homeowner permitted to self-install and self-permit? Yes 82% · 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? Not published as a solar-specific list. The Building Dept.'s general submittal set is: online building-permit application (iWorq portal), Owner-Builder Acknowledgement Form (if owner-builder), Authorization of Agent Form (if an agent signs for the owner), plus plans. Note: the department's own 'Plan Check Checklist' PDF linked from this page is, on OCR, a verbatim City of Redding, CA commercial tenant-improvement checklist (it cites 'Redding Municipal Code (RMC) 18.40.090' and 2019-cycle codes) with only the header changed to 'City of Dunsmuir' — it is not authoritative evidence of Dunsmuir's own residential/solar requirements and was not used as a source for what a residential PV submittal must contain. 55% · department page
• Is a site plan required, and what must it show? A site/plot plan is implied as part of any building-permit submittal but no residential-solar-specific site-plan content list was published by the city. Pacific Power's own interconnection application (separate from the city permit) requires an applicant-submitted site plan showing the meter, AC disconnect switch, and main service panel locations (its published 'Example Site Plan' template). 50% · utility document
• Is a one-line / three-line diagram required? Yes, at the utility interconnection stage — PacifiCorp/Pacific Power publishes an 'Example One-line Drawing' template as part of its rooftop-solar interconnection application materials. No independent city-level one-line-diagram requirement was found in DMC or on the Building Dept. page. 60% · utility document

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? iWorq permit portal — dunsmuir_permit.portal.iworq.net 90% · department page
• Can the whole application be completed online? Yes 60% · department page
• How is the fee calculated? Likely Valuation-based for the building-permit portion (DMC Ch. 15.04 adopts the Uniform Administrative Code, whose standard Table 1-A fee schedule is construction-valuation-based), with the electrical-permit portion codified (but stale) as a per-unit ($/outlet) charge subject to council resolution. Current practice could not be confirmed because no current fee schedule is published. 50% · code of ordinances

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? 180 days (California statewide default under the adopted Building Code's standard permit-expiration provision — permit becomes invalid if work is not commenced within 180 days or is suspended/abandoned for 180 days) 55% · code of ordinances (inferred from statewide-standard incorporation)
• Which utility handles interconnection here? Pacific Power (PacifiCorp) 78% · utility service-territory documentation
• Where does the utility sit in the sequence? Before permit (for utility application/authorization) — Pacific Power's own published rooftop-solar process lists: (1) get quotes, (2) submit interconnection application online, (3) await Pacific Power review/authorization, (4) THEN 'obtain permits and install your system (do not activate yet)', (5) inspection, (6) sign agreement, (7) meter install, (8) activation. 72% · utility DG process page

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 (as the current California Electrical Code cycle), by evergreen local adoption 62% · code of ordinances (evergreen clause) + department page
• Which building code edition is in force? Current California Building Code (Title 24, Part 2), by evergreen local adoption 62% · department page + code of ordinances (evergreen clause)
• Which fire code edition is in force? Current California Fire Code (Title 24, Part 9), by evergreen local adoption 58% · code of ordinances
• Are there local amendments to any of the above? Yes 82% · code of ordinances
• What is the installation judged against? The currently-adopted California Building Standards Code (CBC/CEC/CRC/CFC/Energy Code, Title 24), as incorporated by DMC Chs. 15.04/15.08/15.24/15.32/15.36's evergreen adoption clauses, plus the local amendments listed at Q32. No Dunsmuir-specific solar/PV installation standard (e.g., a local PV ordinance or checklist) was found. 65% · department 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.

Nothing recorded for City of Dunsmuir on this step yet — 1 question checked and found unpublished. The guidance above is general.

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 a requirement of NEC Article 690.12, which DMC 15.36.010 incorporates by reference as part of whichever NEC edition is currently in force (see Q29, currently the 2023 NEC cycle). No local amendment to or exemption from 690.12 was found. 58% · code of ordinances (inferred from NEC incorporation)

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? No Dunsmuir-specific placard requirement was found beyond the (evergreen-adopted) NEC's own labeling articles. The interconnecting utility, Pacific Power, separately requires its own placards at the service point: an engraved meter-base label, an engraved AC (knife-blade) disconnect label, and — if a battery/ESS is present — an engraved battery-disconnect label, plus (since 11/1/2025) two required photos of the meter/disconnect at the interconnection-application stage. 75% · utility document
• Does the authority specify placard wording of its own? No (the AHJ itself does not specify placard wording) — but the interconnecting UTILITY does: Pacific Power's standard hazard placard reads 'HAZARD OF ELECTRICAL SHOCK OR BURN — SERVICE BY UTILITY AUTHORIZED PERSONNEL ONLY — DO NOT PAINT OVER OR REMOVE THIS LABEL' (bilingual English/Spanish), plus separate short labels for the meter base, AC disconnect and battery disconnect. 75% · utility document
• Does it specify letter height, colour or material? The city specifies none of its own. Pacific Power specifies: lettering 3/8 inch high on the standard engraved placards (meter base, AC disconnect, battery disconnect labels); red background with white lettering; for a 'director placard' (where required), lettering at least 9 mm (1/4 inch) tall, comparable to 25-pt Arial, on an approximately 5x5 inch placard sized for readability. 78% · utility document
• Does the UTILITY specify placards beyond the AHJ's? Yes — extensively. Pacific Power's 'Engraved Placard Examples' document specifies placards well beyond a bare NEC minimum: separate engraved labels for the meter base, the AC knife-blade disconnect, and the battery disconnect (which may state the battery's physical location and how to visually confirm it is shut down); a standard bilingual hazard-of-shock placard; and, where a 'director placard' is required, specific lettering-height and sizing guidance. 92% · utility document
• Where must the labels be placed? Per Pacific Power: one engraved label on or next to the utility meter base; one engraved label on or next to the AC knife-blade disconnect for the solar system; and, where present, one engraved label on the battery disconnect (which may be combined with the manual/AC disconnect label if the systems share one disconnect). The visible disconnect itself must be located within sight and within 10 feet of the utility meter (or at a PacifiCorp-approved alternate location with signage at the meter pointing to it). 88% · utility policy document

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 Pacific Power's DER Interconnection Policy (Policy 138), §3.2: the customer-side visible disconnect switch must be 'accessible to PacifiCorp personnel,' 'capable of being locked in the open position,' 'gang-operated,' and 'located within sight and within 10 feet of the utility meter or at a PacifiCorp-approved location with acceptable signage at the utility meter indicating the location of the disconnect.' 88% · utility policy document
• Is a ground mount treated as a structure? Yes, by general definition — DMC 17.08.040 defines 'Accessory structure' broadly as 'a structure that is physically detached from, secondary, and incidental to, and commonly associated with the existing primary structure' (excluding tents/vehicles/habitable buildings), which would capture a ground-mounted PV array. Accessory structures in residential/mixed-use zones must not project into the front-yard setback and (unless attached) must sit at least 10 feet from any residential dwelling on the same or an adjacent lot (DMC 17.92.190(F)). No solar-specific ground-mount ordinance exists; this is inferred from the general accessory-structure rule. 62% · code of ordinances (inferred)

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 85% · 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 60% · staff roster page (absence) + corroborating vendor site
• If delegated, to whom? Development Compliance Solutions, Inc. (DEVCOM) — inferred contract Building Inspector 55% · vendor website (inference)

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 City of Dunsmuir 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 65% · PDF found to be mislabeled/non-authoritative — absence otherwise confirmed

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.

• Who notifies the utility for PTO? Installer (functionally) — Pacific Power's own published process has the customer/installer 'upload inspection documentation and safety sign photos' into the PowerClerk interconnection portal as the step following the AHJ inspection, which triggers Pacific Power's next steps (agreement, meter installation, activation). No Dunsmuir city document assigns this responsibility. 68% · utility DG process page