Illinois vs Washington: Local Ordinance Comparison (2026)

ADU Rules

Washington HB 1337 (RCW 36.70A.681) requires cities and counties to allow two ADUs per lot in urban growth areas, preempting restrictive local rules.

Shed Rules

Washington adopts the International Residential Code statewide; detached one-story sheds 200 square feet or less are exempt from building permits.

Animal Hoarding

Illinois defines and criminalizes companion animal hoarding under the Humane Care for Animals Act, applying uniformly through state criminal code statewide.

Washington RCW 16.52 criminalizes animal cruelty and neglect statewide, providing the legal foundation for animal hoarding prosecutions when owners fail to provide necessary food, water, shelter, and veterinary care to multiple animals.

Beekeeping

The Illinois Bees and Apiaries Act requires registration of all colonies with the Department of Agriculture and authorizes inspections to control diseases statewide.

Washington RCW 15.60 requires all beekeepers with one or more hives to register their apiaries annually with the Washington State Department of Agriculture, supporting disease tracking and pollinator health statewide.

Dog Leash Laws

Illinois law requires owners to keep dogs under restraint or control off their property and imposes strict liability for bites by unrestrained animals statewide.

Exotic Pets

Illinois prohibits private possession of dangerous animals including big cats, bears, wolves, and primates under the Dangerous Animals Act, with limited exempt categories.

Washington RCW 16.30 prohibits private possession, breeding, and importation of dangerous wild animals including big cats, bears, wolves, and primates, applying uniformly statewide with limited grandfather and accreditation exceptions.

Wildlife Feeding

Illinois Wildlife Code prohibits feeding deer and similar wildlife in many counties to prevent chronic wasting disease spread, with statewide enforcement authority.

Structure Height Limits

Washington adopts the International Building Code statewide through chapter 51-50 WAC, setting maximum heights and stories tied to construction type and occupancy classifications.

Dispensary Zoning

Washington's Liquor and Cannabis Board licenses cannabis retailers and imposes statewide 1,000-foot buffers from schools and other sensitive uses, which local governments may reduce but not eliminate.

Recreational Drones

Illinois preempts local drone regulation through the Freedom from Drone Surveillance Act, establishing uniform privacy rules while federal FAA authority controls airspace operation statewide.

Washington combines federal FAA airspace preemption with state criminal statutes prohibiting drone voyeurism, harassment, and interference with first responders that apply uniformly statewide.

Paid Leave Preemption

The Paid Leave for All Workers Act guarantees up to 40 hours of paid leave annually for nearly every Illinois employee, with limited carve-outs for jurisdictions with existing ordinances.

Washington RCW 49.46.200 mandates paid sick leave for nearly all employees, and RCW 50A.04 provides paid family and medical leave funded by payroll premiums.

Worker Scheduling Preemption

Illinois requires 24 consecutive hours of rest each calendar week and a meal break for shifts over 7.5 hours under the One Day Rest in Seven Act, with stricter local rules permitted.

Washington has no statewide predictable scheduling law and does not preempt local rules, allowing cities like Seattle to enforce secure scheduling ordinances.

Coastal Development

The Illinois Department of Natural Resources Coastal Management Program regulates Lake Michigan shoreline development, applying uniform permit requirements along the entire Illinois coast regardless of municipality.

Washington's Shoreline Management Act (RCW 90.58) requires Shoreline Substantial Development Permits for most construction within 200 feet of marine and freshwater shorelines statewide.

Erosion Control

Illinois law authorizes Soil and Water Conservation Districts to establish erosion control standards while NPDES rules require erosion controls at construction sites of one acre or more.

Flood Zones

Illinois law requires state-issued permits for construction within regulatory floodways and mandates municipal participation in NFIP minimum standards across all designated flood hazard areas.

Washington requires all communities participating in the National Flood Insurance Program to adopt floodplain ordinances meeting state minimum standards under RCW 86.16.

Stormwater Management

Illinois EPA administers federally delegated NPDES stormwater permits requiring uniform construction and municipal stormwater controls that apply on top of any local stormwater ordinances.

Washington Department of Ecology administers federally-required NPDES stormwater permits statewide, setting minimum standards for municipal, construction, and industrial stormwater that all jurisdictions must implement.

Neighbor Fence Rules

Washington's partition fence law requires adjoining landowners using a boundary fence for livestock to share construction and maintenance costs equitably under RCW 16.60.

Pool Barriers

Illinois requires pool enclosures meeting the state Swimming Pool and Bathing Beach Code, with statewide minimum barrier rules for public pools and statutory residential standards.

Washington requires pool barriers for residential and public pools through state-adopted building code provisions and Department of Health rules ensuring minimum 48-inch fencing.

Fireworks

Illinois generally prohibits consumer fireworks statewide under the Pyrotechnic Use Act, allowing only novelty items like sparklers, smoke devices, and snakes for the public.

Washington restricts consumer fireworks to specific dates and types under RCW 70.77. State law sets minimum standards, prohibits illegal aerials, and allows local governments to enact stricter rules but not weaker ones.

Outdoor Burning

Illinois EPA regulations restrict open burning statewide, prohibiting the burning of garbage, landscape waste in many urban areas, and any materials producing dense smoke or air pollution.

Washington's Clean Air Act (RCW 70A.15) bans outdoor burning in urban growth areas and most cities. The Department of Ecology and clean air agencies enforce statewide standards regardless of local rules.

Wildfire Zones

Washington adopted the International Wildland-Urban Interface Code statewide under RCW 19.27. New construction in designated WUI areas must meet ignition-resistant building, defensible space, and water supply requirements.

Firearms in Vehicles

Illinois law sets uniform rules for transporting firearms in vehicles under the FOID Card Act and Firearm Concealed Carry Act, preempting local handgun transport ordinances.

Washington RCW 9.41.050 governs carrying firearms in vehicles statewide, requiring a concealed pistol license to carry a loaded handgun in a motor vehicle.

Food Truck Permits

Illinois requires mobile food vendors to obtain certified food protection manager status and meet uniform sanitation standards under the Food Service Sanitation Code statewide.

Washington WAC 246-215 enforced under RCW 43.20 establishes the statewide retail food code requiring mobile food units including food trucks to obtain permits from local health jurisdictions and meet uniform sanitation standards.

Board Procedures

Under the Common Interest Community Association Act, Illinois HOA board meetings must be open to owners with at least 48 hours' notice (765 ILCS 160/1-40), elections follow 765 ILCS 160/1-25, and owners may inspect association records under 765 ILCS 160/1-30(i), where a failure to respond within 30 days is a denial.

Washington requires HOA board meetings to be open to owners and gives owners broad record-access rights. WUCIOA communities follow RCW 64.90.445 (open meetings) and RCW 64.90.495 (records); older associations follow RCW 64.38.035 and 64.38.045. As of January 1, 2026, the WUCIOA open-meetings rule (RCW 64.90.445) applies to all Washington community associations.

E-Verify Mandates

The Illinois Right to Privacy in the Workplace Act limits how employers may use E-Verify and bars mandates that exceed federal law, applying uniformly across all Illinois employers.

Washington has no state E-Verify mandate, and RCW 49.60 prohibits employment discrimination based on national origin or immigration-related characteristics statewide.

Sanctuary Policy Preemption

The Illinois TRUST Act and Way Forward Act bar state and local law enforcement from civil immigration enforcement, holding ICE detainers, or contracting for immigration detention.

Washington's Keep Washington Working Act under RCW 10.93.160 limits state and local cooperation with federal immigration enforcement, establishing statewide sanctuary protections.

Composting

Washington requires jurisdictions over 25,000 to provide organics collection and bans certain organic waste disposal under RCW 70A.205.545.

Tree Trimming

Illinois preempts municipal regulation of utility line clearance vegetation management through ICC rules that apply uniformly to all electric utilities.

Water Restrictions

Washington Department of Ecology administers water rights and may issue drought emergency orders that override local outdoor watering practices statewide.

Weed Ordinances

Illinois law designates noxious weeds and requires landowners to control them on all property regardless of municipal weed ordinances.

Washington RCW 17.10 mandates statewide control of designated noxious weeds; landowners must prevent spread regardless of municipal location.

Amplified Music & Events

Amplified music in Washington is regulated under the statewide Maximum Environmental Noise Levels, which set decibel caps at the property line based on receiving zone and time of day.

Barking Dogs

Illinois Animal Control Act provides a uniform statewide definition of nuisance dogs and authorizes county animal control to impound chronic barkers regardless of city limits.

Construction Hours

Washington's noise code exempts temporary construction sounds during daytime hours from EDNA limits, while night construction still must comply with strict nighttime sound levels.

Industrial Noise

Illinois sets uniform statewide decibel limits for stationary industrial and commercial noise sources through Pollution Control Board rules under the Environmental Protection Act.

Industrial sources in Washington must comply with EDNA limits set by WAC 173-60, with the receiving residential zone limited to 60 dBA daytime and 50 dBA nighttime.

Quiet Hours

Washington's Noise Control Act sets statewide maximum environmental noise levels by zone, with stricter nighttime limits between 10 p.m. and 7 a.m. that apply to all jurisdictions.

Abandoned Vehicles

The Illinois Vehicle Code establishes uniform procedures for declaring, towing, and disposing of abandoned vehicles on public and private property across all jurisdictions in the state.

Washington's RCW 46.55 governs how abandoned vehicles are impounded, noticed, redeemed, and auctioned, providing a uniform statewide framework that local jurisdictions must follow.

EV Charging

Illinois law guarantees renters and condo owners the right to install EV charging stations, preempting local restrictions on residential charging access at multi-unit buildings.

Washington requires EV-ready parking in new construction and prohibits HOAs from banning EV charging stations, establishing baseline requirements that supersede conflicting local rules.

Snow & Sidewalk Clearing

The Illinois Snow and Ice Removal Act shields residential property owners from liability for natural accumulations cleared in good faith, applying uniformly statewide.

Security Deposit Rules

Illinois sets no statewide cap on residential security deposits. Under the Security Deposit Return Act, 765 ILCS 710, a landlord of a building with 5 or more units who keeps any of a deposit for damage must furnish an itemized statement within 30 days of move-out, or return the deposit in full within 45 days, or owe double the deposit plus attorney's fees.

Washington sets no dollar cap on residential security deposits, but it controls how they are collected and returned. A landlord may collect a deposit only with a written rental agreement and a written move-in checklist describing the unit's condition. After the tenancy ends, the landlord has 30 days to refund the deposit with an itemized statement of deductions.

Squatter's Rights & Adverse Possession

Adverse possession in Illinois generally requires 20 years of possession (735 ILCS 5/13-101). The period drops to 7 years when the occupant holds under claim and color of title 'made in good faith' and pays all taxes assessed (735 ILCS 5/13-109), or holds connected record title with 7 years of actual residence (735 ILCS 5/13-107).

Washington's general adverse possession period is 10 years under RCW 4.16.020, requiring possession that is actual, open and notorious, exclusive, hostile, and continuous. A shorter 7-year period applies under RCW 7.28.070 when the occupant holds under good-faith color of title and pays all taxes legally assessed on the land for those seven years.

Agricultural Zoning Protection

Illinois protects agricultural land through the Agricultural Areas Conservation and Protection Act and limits county zoning over farms outside municipal boundaries.

Washington's Growth Management Act under RCW 36.70A.170 requires counties and cities to designate and protect agricultural lands of long-term commercial significance through zoning.

Insurance Requirements

Washington law requires short-term rental operators to maintain primary liability insurance of at least $1 million or operate through a platform that provides equivalent coverage. This statewide requirement applies regardless of local rules.

Taxes & Fees

Illinois imposes a 6% state Hotel Operators' Occupation Tax on short-term rentals of fewer than 30 consecutive days, including platforms like Airbnb and Vrbo, applied uniformly statewide.

Washington imposes statewide sales tax and lodging taxes on short-term rental stays under 30 days. Operators must register with the Department of Revenue, collect applicable taxes, and remit them regardless of local jurisdiction.

HOA Restrictions

Illinois law requires homeowners associations to permit solar energy systems through reasonable policies, prohibiting outright bans or unreasonable restrictions on installations.

Washington RCW 64.38.055 voids homeowner association covenants prohibiting solar panel installation on owner property statewide, while permitting only reasonable placement rules that do not significantly impair efficiency or increase cost.

Panel Permits

Illinois protects residential solar energy installations through the Homeowners Energy Policy Statement Act and limits unreasonable association or municipal restrictions.

Washington RCW 64.38.055 and RCW 64.90.510 prevent HOAs and condominium associations from prohibiting solar panels, while RCW 35.21.700 limits local government ability to ban solar collectors on residential property.

No-Knock Registry

Washington's Commercial Telephone Solicitation Act (RCW 19.158) and Consumer Protection Act govern unwanted commercial solicitation. State law preempts certain telephone solicitation rules and provides statewide remedies against deceptive practices.

Fencing Requirements

The Illinois Swimming Pool and Bathing Beach Act sets statewide minimum barrier and safety standards for public pools enforced by the Illinois Department of Public Health.

Washington WAC 246-260 enforced under RCW 70.90 requires public swimming pools, including those at apartments, hotels, and HOAs, to maintain barriers at least four feet high with self-closing self-latching gates statewide.

Hot Tub Rules

Illinois treats public spas and hot tubs as regulated swimming facilities, applying statewide water quality, signage, and bather load standards through IDPH.

Washington WAC 246-260 regulates public spas and hot tubs at hotels, apartments, gyms, and HOAs, requiring permits, water testing, temperature limits, and posted bather safety warnings under RCW 70.90 statewide.

Safety Rules

Illinois requires lifeguards, safety equipment, and specific signage at public pools and bathing beaches under the Department of Public Health regulations.

Washington RCW 70.90 and WAC 246-260 establish statewide operational safety rules for public pools including water quality, signage, lifeguard or warning sign requirements, and anti-entrapment drain compliance under federal VGB Act.

Tobacco Age Restrictions

Illinois prohibits sale of any tobacco, alternative nicotine, and electronic cigarette product to persons under 21 under the Prevention of Tobacco Use by Persons under 21 Act.

Washington RCW 26.28.080 sets the minimum age for purchasing tobacco and vapor products at 21, aligning with federal Tobacco 21 standards statewide.

Vape Retail Rules

Illinois requires retailers selling electronic cigarettes and e-liquids to obtain Department of Revenue licensing and follow age-verification, packaging, and tax rules statewide.

Washington RCW 70.345 requires licensing for vapor product retailers, distributors, and delivery sellers, with state Department of Revenue oversight and tax collection.

Recycling Requirements

Illinois requires every county to develop and maintain a solid waste management plan with recycling provisions, and bans landfill disposal of landscape waste, electronics, and white goods statewide.

Washington requires curbside recycling availability in urban areas under RCW 70A.205 and mandates organics collection for businesses under RCW 70A.205.545. Counties and cities must implement state-mandated waste reduction plans.

Tree Removal Permits

Washington's Forest Practices Act (RCW 76.09) governs commercial timber harvest on forestlands statewide through Department of Natural Resources permits. Cities cannot regulate qualifying forest practices that follow state class IV applications.