A Portland burn ban can come from either of two agencies that act independently: Portland Fire & Rescue issues fire safety bans when weather makes fires dangerous, and Multnomah County issues air quality restrictions when wood smoke pushes pollution into unhealthy ranges. Either can be active without the other. And regardless of whether any ban is in effect, backyard burning of yard debris is prohibited year-round throughout the Portland metro area. Cooking on a grill or smoker generally remains allowed under both systems.
Two Systems Run in Parallel
Portland Fire & Rescue’s fire marshal handles the fire-danger side. When hot, dry, or windy weather raises the risk of an uncontrolled fire, the marshal restricts anything that could throw sparks or embers into dry vegetation.1Portland.gov. Portland City Code 31.20.020 – Eliminating Fire Hazard
Multnomah County handles the air-quality side. When stagnant winter weather traps smoke and particulates near the ground, the county issues yellow day or red day advisories. On a yellow day, residents are asked to consider limiting wood burning. On a red day, wood burning is prohibited unless you qualify for an exemption.2Multnomah County. Wood Burning Restrictions Oregon DEQ separately posts broader air pollution advisories.3Department of Environmental Quality. Air Pollution Advisories
A fire-danger ban in July does not mean the county has issued an air quality advisory, and a December red day does not mean fire danger is elevated. You have to check both.
What Triggers a Fire Safety Burn Ban
Portland Fire & Rescue’s outdoor burning guidelines say the fire marshal considers a limited or total ban when any combination of these conditions persists: temperatures at or above 95°F, relative humidity at or below 30 percent, or wind speeds at or above 15 miles per hour.4Portland Fire & Rescue. FMO Outdoor Burning and Burning Guidelines Portland’s dry summers can hit those thresholds for weeks at a stretch.
When a fire safety ban is active, the following are off-limits:
- Recreational fires, including campfires, fire pits, chimineas, and outdoor fireplaces
- Yard debris burning of any kindli>
- Agricultural open burning
- All previously issued open burning permits, which are suspended for the duration
Restrictions stay in place until the fire marshal lifts them, typically after sustained rain or a significant temperature drop.5Portland.gov. Burn Ban Updates in City of Portland
Grilling and Cooking Are Still Allowed
This is the point that catches people out. During a fire safety burn ban, Portland Fire & Rescue explicitly allows outdoor barbecue grills, smokers, and similar cooking appliances, whether fueled by firewood, briquettes, wood chips, pellets, propane, or natural gas.5Portland.gov. Burn Ban Updates in City of Portland The same cooking exemption applies during Multnomah County red day advisories: charcoal grills, smokers, and wood-fired ovens used for cooking are allowed.
The agency asks for real caution. Keep at least ten feet between your cooking setup and anything combustible, including fences, siding, and dry shrubs. After grilling with charcoal, put the ashes in a covered metal container, soak them, and leave them wet for a few days before disposal. The line the ban draws is between cooking and recreation. Grilling a steak is fine. Lighting a fire pit to sit around is not.
Backyard Yard Debris Burning Is Prohibited Year-Round
Many residents assume that when no ban is active, they can burn leaves or branches on their own property. They cannot. Backyard burning of yard debris is permanently prohibited within a boundary that covers portions of Multnomah, Clackamas, and Washington counties.2Multnomah County. Wood Burning Restrictions This is not seasonal. If you live in the Portland metro area, open burning of vegetation is off the table all year. Use curbside yard debris collection or a metro transfer station instead.
Air Quality Red Day Rules and Exemptions
On a Multnomah County red day, you cannot operate wood or pellet stoves, fireplaces, outdoor fire pits, or chimineas. Unlike a fire safety ban, this includes indoor devices.2Multnomah County. Wood Burning Restrictions
The county’s ordinance allows burning during a red day if one of these applies:
- Your wood stove or fireplace is the sole source of heat in your home. This does not apply if the home has a permanently installed oil, gas, electric, geothermal, solar, or propane system, even if that system is disconnected.
- Your household qualifies as low income.
- There is an emergency, meaning a power outage, natural gas interruption, or temporary failure of your primary heating system, for up to 120 days.
- Your wood stove has an EPA or DEQ emissions rating of 2.5 grams per hour or less.
Except in emergencies, you have to apply for and receive the exemption before burning on a red day.6Multnomah County. Amending MCC Chapter 21 – Health to Add 21.450-21.458
How to Check the Current Status
Because two agencies act independently, check both before you light anything:
- For fire safety bans, Portland Fire & Rescue posts current status at portland.gov/fire/burn-ban-status, or call 503-823-3700.5Portland.gov. Burn Ban Updates in City of Portland
- For air quality restrictions, Multnomah County posts the current yellow or red day status at multco.us.2Multnomah County. Wood Burning Restrictions
Oregon DEQ also runs an interactive Air Quality Index map at aqi.oregon.gov, where you can click monitoring stations across the Portland area for real-time readings.7Department of Environmental Quality. Air Quality Today Conditions shift quickly, particularly during wildfire season. Check the morning you plan to burn.
Penalties and Financial Liability
Under Oregon law, burning without a required permit or in violation of fire district regulations is a misdemeanor.8Oregon Public Law. Oregon Code 478.990 – Penalties If a fire you set damages someone else’s property, the charge can escalate to reckless burning, a Class A misdemeanor carrying up to one year in jail.9Oregon State Legislature. Oregon Code 164.335 – Reckless Burning
The bigger exposure is civil. Under ORS 477.089, a person who causes a wildfire is liable for the full cost of fighting it, covering labor, equipment, air support, and every responding agency’s crew deployment.10Oregon Public Law. Oregon Code 477.089 – Recovery for Property Damage Liability for Firefighting Costs A fire that takes multiple engine companies several hours to contain can produce a suppression bill that dwarfs any court fine. Property owners whose land or buildings were damaged can also sue for their losses. Multnomah County gives residents 30 days to appeal a wood burning citation, but the appeal window does not pause other legal consequences if the fire caused damage.