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Caldwell sets citywide quiet hours from 11:00 p.m. to 7:00 a.m. under City Code Section 07-13-03. During those hours it is unlawful to make or allow loud or offensive noise, by any means, that disturbs the peace, quiet, and comfort of a reasonable person. 'Loud or offensive noise' is sound plainly audible 150 feet or more from its source.
Caldwell has no separate construction-hours ordinance setting specific start and stop times for building work. Construction noise is governed by the general public noise rule (City Code 07-13-03): loud or offensive noise plainly audible 150 feet from the source is unlawful between 11:00 p.m. and 7:00 a.m. In practice that means noisy construction should pause overnight.
Caldwell treats animal noise as a nuisance under its Animal Control Regulations. It is unlawful for anyone keeping animals to let them create a disturbance by making noise, and animals that emit excessive, continuous, or untimely noise are a public nuisance. Caldwell Police Animal Control handles complaints inside city limits.
Caldwell controls amplified music through its public noise rule. Under City Code 07-13-03, loud or offensive noise from radios, loudspeakers, and sound-amplifying equipment that is plainly audible 150 feet from the source is unlawful between 11:00 p.m. and 7:00 a.m. Permitted city events downtown may run until 1:00 a.m. on Friday/Saturday.
Caldwell has no leaf-blower-specific ordinance—no ban, decibel cap, or special operating hours for gas or electric blowers. Leaf blowers fall under the general public noise rule (City Code 07-13-03), which bars loud or offensive noise plainly audible 150 feet from the source between 11:00 p.m. and 7:00 a.m.
Caldwell bars loud amplified sound in vehicles and 'jake' brakes under City Code 07-13-04. Car stereos plainly audible 50 feet away on a public street are unlawful, and air-compression (engine) brakes are banned except in emergencies, with fire vehicles exempt. State law (Idaho Code 49-937) separately requires working mufflers.
Caldwell does not set numeric decibel limits. Instead, its noise ordinance uses a 'plainly audible' test: under City Code 07-13-03, loud or offensive noise that is plainly audible 150 feet from its source is unlawful between 11:00 p.m. and 7:00 a.m. For vehicles, the threshold is plainly audible at 50 feet (07-13-04).
Outdoor music in Caldwell is governed by the public noise rule (City Code 07-13-03) and the exceptions in 07-13-05. Loud music plainly audible 150 feet away is unlawful between 11:00 p.m. and 7:00 a.m., but permitted events and city-sponsored downtown events may run later—up to 1:00 a.m. on Friday/Saturday in event areas.
Caldwell does not impose special industrial noise limits. City Code 07-13-05 expressly exempts noise that results from regular business activities in appropriately zoned areas, including regular industrial operations at the Caldwell Executive Airport. General nighttime quiet hours (07-13-03) still apply outside that exemption.
Caldwell does not regulate aircraft noise; its code expressly exempts it. City Code 07-13-05 lists regular flight operations at the Caldwell Executive Airport among permitted activities. Aircraft and airport noise are primarily controlled by the FAA under federal law, not by city ordinance.
Caldwell has no short-term-rental-specific permit in its City Code, and Idaho law sharply limits what the city could require. Idaho Code 67-6539 bars cities from prohibiting STRs and classifies them as residential land use. Under HB 583 (effective July 1, 2026) cities may not require any STR license, fee, permit, certification, or registration.
Caldwell does not require short-term rentals to register with the city, and Idaho law prohibits it going forward. HB 583, amending Idaho Code 67-6539 effective July 1, 2026, bars cities from requiring any registration, license, certification, or permit to operate an STR. Operators register only with the Idaho State Tax Commission for lodging taxes if renting outside a marketplace.
Caldwell sets no short-term-rental-specific occupancy cap. Under Idaho Code 67-6539 an STR is a residential land use, so it is subject only to the occupancy standards that apply to any dwelling. HB 583 (effective July 1, 2026) lets cities apply occupancy limits tied to International Building Code standards, but only if applied equally to all residences.
Caldwell imposes no STR-specific city fee, and HB 583 bars one as of July 1, 2026. Stays of 30 days or less owe Idaho's 6% sales tax plus the 2% Travel and Convention Tax (8% total). Caldwell sits outside the Greater Boise Auditorium District and is not a resort city, so no extra local lodging tax applies.
Caldwell imposes no extra off-street parking on short-term rentals. As a residential land use under Idaho Code 67-6539, an STR is subject only to the same parking standards as any home. HB 583 (effective July 1, 2026) bars cities from requiring additional parking for STRs beyond what applies to all residences.
Short-term rentals in Caldwell follow the same noise rules as every property. City Code 07-13-03 bars loud or offensive noise plainly audible 150 feet from the source between 11:00 p.m. and 7:00 a.m. Idaho law (67-6539) lets cities apply these generally applicable noise rules to STRs, and HB 583 confirms STRs must comply with noise and nuisance ordinances.
Caldwell does not require a short-term rental to be the host's primary residence, and Idaho law forbids such a rule. Idaho Code 67-6539 treats STRs as residential land use, and HB 583 (effective July 1, 2026) bars cities from imposing owner-occupancy or primary-residence requirements on short-term rentals.
Caldwell does not require a host or manager to be present or on-site during short-term rental stays, and Idaho law bars such mandates. HB 583 (effective July 1, 2026) prohibits cities from requiring professional property management or owner presence for short-term rentals. Whole-home, unhosted rentals are allowed.
Caldwell does not cap the number of nights a property may be rented short-term, and Idaho law forbids such limits. Idaho Code 67-6539 bars ordinances that effectively prohibit STRs, and HB 583 (effective July 1, 2026) prohibits cities from restricting rental days or capping the number of short-term rentals. Year-round operation is allowed.
Caldwell does not require short-term rental operators to carry special liability insurance, and Idaho law prohibits such a mandate. HB 583 (effective July 1, 2026) bars cities from requiring additional insurance for short-term rentals. Hosts should still carry their own coverage as a business precaution, but it is not a city requirement.
Caldwell adopts Idaho's Fireworks Act of 1997 (Idaho Code Title 39, Chapter 26). Only nonaerial 'safe and sane' common fireworks may be used by the public; aerial fireworks are illegal without a public-display permit. Legal use periods run June 23-July 5 and December 26-January 1.
Recreational fires, campfires and ceremonial fires are allowed in Caldwell without a permit if the fire stays under three feet in diameter and two feet high. Fire-extinguishing equipment such as a connected water hose must be readily available, and a competent adult must attend until the fire is out.
Caldwell City Code Article 17 bans most outdoor burning. Weed-abatement and special-circumstance fires require a Caldwell Fire Department permit. All burning is prohibited when the Treasure Valley air quality index hits 60 or winds exceed 10 mph, and burn piles are capped at 3 feet by 2 feet.
Caldwell has no defensible-space wildfire ordinance, but it does regulate overgrown vegetation as a nuisance. Code Compliance can require property owners to abate weeds and rank growth, and the city may clear it and assess the cost against the property if the owner does not comply.
Backyard recreational and cooking fires are allowed in Caldwell without a permit if kept under three feet in diameter and two feet high, with extinguishing equipment ready and an adult attending. Larger fires need a fire department permit. Burning leaves, garbage and yard waste is always prohibited.
Caldwell follows the Idaho-adopted International Residential Code (2018 IRC) for smoke and carbon monoxide alarms in homes, and Idaho Code 6-320 requires landlords to install approved smoke detectors in every rental dwelling unit, including mobile homes.
Propane (LP-gas) storage and use in Caldwell is governed by the International Fire Code that the city adopts through the Idaho State Fire Marshal. The 2018 IFC Chapter 61 sets cylinder placement, separation and container limits; the city has no separate propane ordinance.
Caldwell has not adopted a wildland-urban interface (WUI) code or mapped wildfire hazard zones. The city sits in the flat, irrigated Treasure Valley with relatively low structural wildfire risk; fire-season fireworks restrictions and Canyon County's wildfire mitigation planning are the main controls.
Caldwell City Code 09-07-09 authorizes the city to designate no-parking and loading/delivery zones through painted curbs, pavement striping, and posted signs, and makes parking in violation of those markings unlawful. Downtown, vehicles get only a thirty (30) minute loading exception to the overnight rule under 09-07-12.
Caldwell allows general on-street parking citywide but enforces time-limited zones of three (3) and four (4) hours in the Downtown Parking District under City Code 09-07-12. Downtown time limits are enforced Monday through Friday, 9 a.m. to 5 p.m. Parking that violates posted curb markings or signs is prohibited under 09-07-09.
Caldwell City Code 09-07-13 prohibits parking a camper, motor home, recreational vehicle, or trailer on the street except for loading or unloading, and even then for no more than forty-eight (48) hours. Vehicles parked in violation may be ticketed and towed by the police department or an authorized parking officer.
Within Caldwell's Downtown Parking District, City Code 09-07-12 makes it unlawful to park a vehicle or trailer between 2:00 a.m. and 5:00 a.m. without a lawfully issued parking permit. A vehicle may stop for up to thirty (30) minutes for loading or unloading. Permits are available through the Community Development Department.
Caldwell's City Code does not contain a stand-alone weight-based commercial-vehicle street-parking ban in its Parking Regulations article. Commercial vehicles are subject to the general improperly-parked rules (09-07-13), the 48-hour limit on trailers, downtown time and overnight limits (09-07-12), and designated loading/no-parking zones (09-07-09). Idaho Code 49-660 governs prohibited stopping and standing locations.
Under Caldwell City Code 09-01-11, abandoned motor vehicles or personal property left on a street or public property for forty-eight (48) hours, or on private/business property open to the public for five (5) days, may be removed by the police department. Towing and storage costs are charged to the vehicle owner.
Caldwell City Code 09-07-13 prohibits blocking a driveway with a parked vehicle and parking across or on sidewalks in a way that obstructs passage. Idaho Code 49-660 reinforces this, barring stopping or standing in front of a public or private driveway and on any sidewalk. Violations may be ticketed and towed.
Caldwell's Parking Regulations do not set a dedicated length or height limit for oversized vehicles on residential streets. Oversized RVs, trailers, and large trucks are instead governed by the 48-hour street rule (09-07-13), downtown time and overnight limits (09-07-12), no-parking markings (09-07-09), and the Idaho Code 49-660 stopping prohibitions.
Caldwell's City Code does not contain a dedicated ordinance governing parking at electric-vehicle charging stations or reserving EV-only spaces. The city operates public charging downtown (including a City of Caldwell 9th Avenue location), but charging spaces are governed by the general downtown parking time and overnight rules under City Code 09-07-12 and posted signage under 09-07-09.
Caldwell's Parking Regulations article does not appear to include a dedicated snow-emergency or seasonal on-street parking ban. During plowing operations, vehicles must still obey general improperly-parked rules (09-07-13), posted no-parking signs and markings (09-07-09), and the Idaho Code 49-660 prohibition on obstructing the roadway. Sidewalk snow clearing is handled by the Street Department.
Caldwell City Code section 10-02-07 limits open and solid residential fences to a maximum of six feet along side and rear property lines. Within twenty feet of the front property line, heights step down. Fences in a vision triangle are capped at three feet for traffic visibility.
Under the Idaho Residential Code adopted by Caldwell, fences up to seven feet are exempt from a building permit, but all fences must still comply with zoning Section 10-02-07 for height, setback, and material. Masonry walls, retaining walls over four feet, and pool barriers can trigger a separate permit.
Caldwell's zoning code sets fence heights and a "good side out" rule but does not assign cost-sharing for boundary fences. Idaho Code Title 35 governs shared partition fences: an adjoining owner who is notified must build half, or the neighbor can build it and recover half the cost with a lien.
Caldwell follows the Idaho Residential Code, which exempts retaining walls four feet or less (measured from the bottom of the footing to the top) from a building permit unless they support a surcharge or impound flammable liquids. Taller walls require a permit and engineering. Walls must also respect zoning setbacks and vision triangles.
Caldwell City Code 10-02-07 prohibits electric, concertina, barbed, and razor wire fences in most zoning districts. Such wire is allowed only as the top section of fences in commercial and industrial zones, beginning at least six feet above grade. Chainlink and vinyl are barred in the Steunenberg historic district.
Caldwell City Code 10-02-07 requires fences to conform to height, setback, and material standards in every zoning district except C-C City Center. Street-frontage fences built after December 1, 2019 must show the finished side outward, and fences cannot obstruct a vision triangle.
Most standard fence materials are allowed in Caldwell under Section 10-02-07, but the code distinguishes "open" from "solid" fencing for height and bars dangerous wire types outside commercial/industrial zones. Historic and arterial-frontage rules add material limits, and street-frontage fences must show the finished side outward.
Idaho adopts the International Residential Code statewide under Idaho Code 39-4109, which requires residential swimming pools, spas, and hot tubs to be enclosed by a barrier at least 48 inches high with self-closing, self-latching gates.
Caldwell requires dogs to be confined to the owner's property in a secure enclosure, or otherwise controlled on a leash when off the premises and accompanied by the owner. City Code section 08-03-17 governs running at large and animal confinement, and Idaho Code 25-2805 separately makes running at large an infraction.
Caldwell's land use code (10-02-15) lets a household keep up to ten chickens as pets without a half-acre lot. Exceeding the listed numbers, or adding more animal types, requires a minimum one-half acre lot and/or a special use permit. Poultry must be enclosed; roosters are treated as livestock.
Caldwell does not ban any dog breed. The city instead regulates 'vicious' and 'dangerous' animals by behavior and history under City Code 08-03-25, and Idaho Code 25-2810 controls court-ordered restrictions on dangerous and at-risk dogs statewide. Some other Idaho towns have breed bans, but Caldwell relies on conduct-based rules.
Caldwell's published animal land use code (10-02-15) lists the pets and livestock it regulates, and honeybees are not among the named animals. The city does not appear to publish a dedicated beekeeping ordinance. Apiaries in Idaho are regulated at the state level by the Idaho State Department of Agriculture under Idaho Code Title 22, Chapter 25.
Caldwell's land use code limits household animals to listed pets and livestock and lets the planning director decide what 'equivalent small animals' qualify, but exotic and wild species are controlled mainly by the state. Idaho's deleterious exotic animal rules (ISDA) and captive wildlife laws (Idaho Fish and Game) require permits for many exotic and native wild species.
Caldwell allows livestock but requires a minimum one-half acre lot to qualify (City Code 10-02-15 and 10-12-03-3). Livestock must be kept in enclosures meeting the zoning district's setbacks and the fence ordinance, and maximum animal density is capped, excluding offspring under nine months of age.
Caldwell's land use code (10-02-15) caps household pets, using the example of up to five cats, ten chickens, and one goat, and no household may keep more than three different types of pets. Exceeding the listed numbers or adding more types requires a minimum half-acre lot and/or a special use permit.
Caldwell's animal control chapter regulates canines, not cats, and contains no cat licensing requirement. Cats are still capped by the land use code's pet limits (up to five per household under 10-02-15). General confinement and nuisance principles apply, and Idaho's animal cruelty law (Idaho Code 25-3504) protects all animals.
No dedicated Caldwell ordinance prohibiting the feeding of deer, waterfowl, or other wildlife was located in the city code. Feeding that creates a nuisance can be addressed under the city's general nuisance and code compliance authority, and Idaho Fish and Game discourages feeding big game. Some other Idaho cities, such as Pocatello, do have explicit feeding bans.
Caldwell does not appear to have a hoarding-named ordinance, but its pet and livestock limits under City Code 10-02-15 cap how many animals a household may keep without a larger lot or permit, effectively guarding against overcrowding. Animal neglect and cruelty, the core harm in hoarding cases, are crimes under Idaho Code 25-3504.
Caldwell does not publish a single numeric lawn-height cap. Instead, overgrown grass and weeds are regulated as a public nuisance under Chapter 7, Article 11. Exterior property must be kept free of weeds and overgrown vegetation, and violations are abated through the city's code-compliance process.
Caldwell's Tree Ordinance (Chapter 10, Article 8) governs trimming of public and street trees. "Topping" of public trees is prohibited except in limited cases, and pruning of public trees is overseen by the City Forester. Caldwell is a long-running Tree City USA community.
Removing a public or street tree in Caldwell requires City Forester involvement, and anyone who removes or destroys a public tree must replace it with trees of equivalent dollar value. Private trees on private property are far less restricted. Article 8 of the City Code governs.
Caldwell requires new developments to irrigate landscaping with non-potable (surface/well) water through pressurized irrigation built to Caldwell Municipal Irrigation District standards, conserving drinking water. Section 10-07-12 governs irrigation; dry landscaping is allowed where no irrigation water right exists.
Caldwell requires property to be kept free of weeds under its nuisance code (Chapter 7, Article 11). Idaho's statewide Noxious Weed Law (Title 22, Chapter 24) separately makes every landowner responsible for controlling state-listed noxious weeds at their own expense.
Caldwell has no specific city ordinance restricting rooftop rainwater collection. The governing rule is Idaho state water law: rooftop rainwater and diffused surface water may generally be collected on your own property as long as it does not injure existing downstream water rights.
Caldwell's Landscaping Ordinance (Article 7) allows drought-tolerant "dry landscaping" where a property lacks irrigation water rights, but for standard wet-landscaped areas the primary and dominant material must be grass. Native and low-water plants are welcome within those plant-material standards.
In Caldwell's required landscaped areas, artificial turf cannot be used to satisfy the landscaping requirement. Section 10-07-04 states that artificial plants or carpeting cannot substitute for landscape plant material, and that the dominant material in those areas must be living grass.
Caldwell has no ordinance prohibiting backyard composting, which is permitted as long as the pile doesn't become a nuisance under Chapter 7, Article 11. The city's trash and recycling service (Republic Services) accepts grass clippings and yard debris in paper bags for collection.
Building a pool in Caldwell requires a building permit. The city has adopted the 2018 International Residential Code (including Appendix G for pools and spas) per City Code 12-01-01, and the Building Safety Division reviews and inspects pool construction under that code.
Caldwell's zoning code (10-12-03-1) does not set its own pool-barrier dimensions; it states pool barriers 'shall be provided and regulated under the adopted building codes.' That code is the 2018 IRC, Appendix G, which requires a barrier at least 48 inches high with self-closing, self-latching gates.
Pool safety in Caldwell is governed by the adopted 2018 International Residential Code, Appendix G (City Code 12-01-01), enforced through the building-permit process. Zoning Code 10-12-03-1 adds a 10-foot property-line setback and points barrier requirements to that building code.
Caldwell's pool definition (Code 10-01-10) covers above-surface pools more than 30 inches deep, so above-ground pools are regulated. They must meet the 10-foot property-line setback (Code 10-12-03-1) and the adopted 2018 IRC Appendix G barrier rules, and are permitted in interior side and rear yards.
Caldwell regulates spas and hot tubs through the adopted 2018 International Residential Code, Appendix G (City Code 12-01-01), which covers pools, spas and hot tubs. The zoning code's 10-foot pool setback (10-12-03-1) applies, and barrier rules are enforced through that building code.
Caldwell allows home occupations in dwellings under City Code 10-12-03-22. The business must be clearly incidental and secondary to the home, conducted by the residents (plus at most one outside helper), use no more than one-fourth of the dwelling, and not be apparent from the exterior.
Caldwell limits home-occupation signage to a single nameplate sign attached to the dwelling that complies with the sign ordinance (City Code 10-12-03-22(4)H). In residential districts, signs may not exceed six square feet in total sign area per road frontage (Code 10-02-06-7).
Caldwell requires a home occupation permit before operating any home business. Under City Code 10-12-03-22, you apply in writing to the Planning and Zoning Department, pay a fee set by City Council, and meet all home-occupation standards. The permit is site- and person-specific and non-transferable.
Caldwell has no separate cottage food ordinance. Home food production is governed by Idaho state law: cottage food operations selling non-TCS (shelf-stable) foods do not need a food establishment license, per the Idaho Food Code, administered locally by Southwest District Health for Canyon County.
Caldwell's zoning code (10-12-03-14) requires all in-home daycares to hold a State of Idaho license regardless of the number of children, and limits in-home daycares to 12 children. State licensing is administered by the Idaho Department of Health and Welfare; the city adds zoning standards like fencing and hours.
Caldwell allows an accessory dwelling unit by right on single-family lots. ADUs must be at least 200 square feet, are limited to one bedroom, and may not use a recreational vehicle or mobile home. The ADU cannot be subdivided off the parcel and must meet accessory-structure setbacks.
Caldwell sheds and detached accessory buildings under 200 square feet need no setback; those 200 to under 600 square feet must sit at least 5 feet from interior side and rear lot lines. In residential zones an accessory structure may not be larger than the principal home without a special use permit, and height is capped by district.
Caldwell has no separate 'garage conversion' ordinance. Converting a garage into living space is reviewed as a building-permit and zoning matter, and if it creates a second independent dwelling it must meet the city's accessory dwelling unit standards in 10-12-03-1, including the one-bedroom limit and accessory-structure setbacks.
Caldwell regulates carports as accessory structures under City Code 10-02-04. A detached carport follows the same size-based setbacks as other accessory buildings - no setback under 200 square feet, 5 feet for 200 to under 600 square feet - and the same district height caps of 22 or 33 feet.
A tiny home on a permanent foundation is treated as a regular dwelling or ADU in Caldwell and must meet building and zoning code. A tiny home on wheels or a recreational vehicle is prohibited for use as an ADU under City Code 10-12-03-1, and Idaho generally bars living in an RV on a standard residential lot.
Barbecue grills and pits are expressly allowed in Caldwell for cooking and recreation. Propane grill cylinders follow the International Fire Code (adopted via the Idaho State Fire Marshal). Multifamily buildings face IFC limits on where grills and cylinders may be used and stored near units.
Backyard smokers and barbecue pits used to prepare food are allowed in Caldwell without a permit under the city's open-burning exemption for cooking fires. The main limits are that the cooking fire must stay reasonably sized, be attended, and not become a smoke nuisance to neighbors.
Caldwell sets minimum front, side, and rear yard setbacks by zoning district in its residential bulk and dimensional standards (Article 5 of Chapter 10). Exact distances vary by district (R-1, R-2, R-3, RS, etc.), so owners must check their zoning before building. Setbacks are measured from the property line.
Caldwell limits building height by zoning district in its bulk and dimensional standards. For accessory buildings, the code caps height at twenty-two feet in the R-1, R-2, and R-3 districts and thirty-three feet in the RS-1 and RS-2 districts. Principal-building maximums vary by district, so verify your zone.
Caldwell caps how much of a lot can be covered by structures and paving. The code limits total lot coverage (roofed and paved surfaces, including driveways, walks, and parking) to eighty percent of the lot, and limits single-family attached dwellings to sixty-five percent on interior lots and fifty percent on corner lots.
Caldwell does not publish a standalone container-screening ordinance; trash-cart handling is governed by the Republic Services residential guidelines. Carts must be returned from the curb within 24 hours of collection, and accumulating refuse or overflowing containers can be cited as a nuisance under Chapter 7, Article 11.
Caldwell regulates blight through Chapter 7, Article 11 (Nuisance Abatement; Appearance of Property) and the property-maintenance standards in Chapter 10. Owners must keep premises clean, safe, and free of weeds, trash, debris, and other nuisances, or face a voluntary-compliance notice and abatement.
Under Caldwell's property-maintenance code, every owner of a vacant lot must keep it clean and free of garbage, litter, standing stagnant water, debris, and improperly parked vehicles. Neglected lots are handled as nuisances under Chapter 7, Article 11, with a 10-day voluntary-compliance step.
Caldwell requires premises to be kept free of weeds under Chapter 7, Article 11 and section 10-02-04, treating overgrown vegetation as a nuisance. The city's published code does not state a specific grass-height number; Idaho Code 50-317 backs the city's power to cut weeds and bill the owner.
Caldwell does not publish a specific garage-sale permit ordinance. Occasional residential yard sales are governed mainly by Idaho's sales-tax occasional-sales exemption, which allows up to two sales per calendar year, each a one-weekend event. Frequent or commercial selling can implicate the city's business-license and home-occupation rules.
Republic Services collects Caldwell residential trash weekly, billed through Caldwell City Utility Billing. Carts must be out by 7 a.m. with lids closed. Every home gets a 95-gallon cart (200 lb limit); extra cans must be 35 gallons or smaller and 60 lbs or less. Collection is delayed a day during six holiday weeks.
Republic Services requires Caldwell carts to be placed in the street against the curb, at least 3 feet from other carts and objects, with 14 feet of overhead clearance and the handle facing the house. Set carts out by 7 a.m., don't block sidewalks, and remove all containers from the curb within 24 hours.
Republic Services collects appliances, furniture, and other large items in Caldwell for an extra fee by appointment (208-466-3302). One free bulky-item pickup is offered each Spring Clean Up Week in April, and an annual free trash day at the landfill is the 4th Saturday in April. Yard waste must be cut and bundled to size.
Recycling is optional in Caldwell for a small monthly fee on the city utility bill. Republic Services provides a 95-gallon all-in-one (no-sort) cart collected every other week on your trash day. Accepted: clean paper, cardboard, #1 and #2 plastic bottles/jugs, and metal cans. Not accepted: glass, Styrofoam, plastic bags, and yard waste.
Caldwell City Code 08-17-01 prohibits throwing, discarding, or depositing rubbish, garbage, or refuse on any street, alley, sidewalk, or vacant ground, or in any canal, irrigation ditch, drainage ditch, or watercourse. Violations are an infraction punishable by a civil penalty of up to $100, plus possible injunction.
Caldwell allows political signs to be posted no more than 60 days before an election and requires removal within 10 days after election day. Signs must not damage public property, need the property owner's permission, and no electric political signs are allowed in residential districts. Signs in the right of way or vision triangle may be removed by city staff.
Caldwell has no garage-sale-specific sign exemption. Yard-sale signs fall under the general temporary-sign rules in City Code 10-02-06, which limit residential signs to 6 square feet per road frontage and allow temporary signs only as banners, yard signs, plywood signs, changeable-copy signs, or portable signs. Signs in the right of way or vision triangle may be removed without notice.
Caldwell's outdoor lighting standards require fixtures over 15 feet tall to use a full cutoff shield, restrict uplighting to fixtures shielded from the sky by a roof or similar structure, and require floodlights to be sensor-activated and shut off within 5 minutes. The rules limit glare and skyward light, functioning as the city's dark-sky-style standards.
Caldwell's outdoor lighting standards address light trespass by capping light that crosses property lines and requiring shielding. Fixtures over 15 feet tall need full cutoff shields, uplighting must be sky-shielded, and floodlights must be motion-activated and shut off within 5 minutes, all of which limit light spilling onto neighboring properties.
Canyon County does not maintain a single county-wide door-to-door solicitor permit. Door-to-door commercial sales in unincorporated Canyon County are governed by Idaho Code § 48-603A (door-to-door sales contracts and 3-day rescission) and by the individual city codes of Caldwell, Nampa, Middleton, Wilder, Greenleaf, and other incorporated cities. Religious, political and charitable canvassing is constitutionally protected. Homeowners' primary local tool is posting 'No Soliciting' signs and reporting trespass under Idaho Code § 18-7008.
Idaho Code 18-7008 criminal trespass enforces posted no-soliciting and no-trespassing signs at private residences, while local governments may operate municipal do-not-knock registries.
Because Idaho Code 37-2732 prohibits sale and delivery of marijuana, no marijuana dispensaries may legally operate anywhere in Idaho. There is no state licensing scheme, and no city or county can permit dispensary zoning regardless of local political support.
Idaho Code 37-2732 prohibits manufacturing, delivering, or cultivating marijuana in any quantity. Idaho has no medical or recreational program; home cultivation is a felony, and no city or county can authorize personal grows under state law.
Commercial drone use in Idaho is governed primarily by FAA Part 107, which preempts most state and local regulation of airspace. Idaho Code 21-213 still applies to surveillance and privacy, and law enforcement evidence-gathering by drone requires a warrant under state law.
Idaho Code 21-213 prohibits using unmanned aircraft systems to conduct surveillance, gather evidence, or photograph specifically targeted persons or private property without written consent. The statute applies uniformly statewide, and recreational pilots also face FAA federal preemption on airspace operations.
Idaho Code 44-1502 preempts local minimum wage ordinances, holding all Idaho cities and counties to the state minimum wage of $7.25 per hour, the same as the federal floor.
Idaho Code 44-1502 preempts local government mandates on employee benefits including paid sick leave and paid family leave, leaving leave benefits to employer discretion or federal law statewide.
Idaho Code 44-1502 preempts local predictive scheduling, fair workweek, and similar employment ordinances, blocking cities from imposing advance-notice or premium-pay scheduling rules on private employers.
Idaho Code 46-1020 through 46-1024 establishes the statewide framework directing local governments to adopt floodplain management ordinances meeting NFIP minimum standards. The Idaho Department of Water Resources coordinates compliance, and local rules must satisfy federal flood insurance program requirements.
The Idaho Pollutant Discharge Elimination System (IPDES) program, administered by the Department of Environmental Quality under Idaho Code Title 39 Chapter 36, requires construction sites disturbing one or more acres to obtain stormwater coverage. State permits preempt conflicting local discharge standards.
Idaho permits residents 18 and older to carry concealed firearms statewide without a license under Idaho Code 18-3302, while still offering enhanced and standard permits for reciprocity in other states.
Idaho Code 18-3302J broadly preempts local government regulation of firearms, ammunition, and components, voiding city or county gun ordinances that exceed state law and protecting uniform statewide firearm rights.
Idaho is an open-carry state allowing any person legally able to possess a firearm to carry it openly without a permit, with local restrictions preempted under Idaho Code 18-3302J firearms preemption.
Idaho Code 18-3302 allows residents 18 or older who may legally possess a firearm to carry loaded handguns concealed in vehicles without a permit, while preemption blocks any local vehicle-carry restrictions.
Idaho Code 18-7028 and Executive Order 2009-10 require state agencies and public works contractors doing business with Idaho to enroll in and use the federal E-Verify system to confirm employment eligibility of new hires.
Idaho Code 18-7106, enacted by HB 463 in 2014, prohibits Idaho cities and counties from adopting sanctuary policies that limit cooperation with federal immigration enforcement, requiring full compliance with federal immigration law and detainers.
Idaho Code Title 6 Chapter 3 establishes the exclusive grounds and procedures for residential eviction statewide. Idaho does not recognize just-cause eviction protections, and cities cannot create additional tenant protections that conflict with state landlord-tenant law.
Idaho Code 55-307 expressly prohibits cities and counties from enacting any ordinance that regulates rent, fees, or deposits on private residential rental property, making rent control illegal statewide regardless of local political preference or housing market conditions.
Idaho protects agricultural land uses through the Local Land Use Planning Act and Right to Farm Act, with Idaho Code 22-4503 limiting local zoning that would restrict established farm operations on agricultural land.
Idaho Code 22-4501 et seq., the Idaho Right to Farm Act, protects established agricultural operations from nuisance lawsuits brought by neighbors when surrounding land use changes after the farm began operating.
Idaho Code 67-7401 enacted in 2016 prohibits cities and counties from regulating, banning, or imposing fees on auxiliary containers including plastic bags, polystyrene, and other single-use food packaging statewide.
Idaho Code 67-7401 preempts local regulation of polystyrene foam food containers and similar packaging, treating polystyrene as an auxiliary container subject to the 2016 statewide preemption law.
Idaho Code 67-7401 preempts local regulation of plastic straws and other auxiliary containers, preventing Idaho cities from enacting upon-request rules, bans, or fees on single-use straws.
Idaho Code 39-5703 sets 21 as the minimum age to purchase tobacco, vapor products, and alternative nicotine products, aligning state law with federal Tobacco-21 and barring local age inconsistencies.
Idaho does not ban flavored tobacco or vapor products at the state level, and local flavor bans face significant preemption questions under the statewide tobacco licensing framework in Idaho Code Title 39 Chapter 57.
Idaho regulates electronic cigarette and vapor product retailers under Idaho Code 39-5701 et seq., requiring permits, age verification, and compliance with statewide tobacco-21 rules that preempt most local vape sales restrictions.