Oregon Secretary of State

Department of Forestry

Chapter 629

Division 44
WILDFIRE HAZARD ZONES; WILDLAND-URBAN INTERFACE

629-044-1000
Purpose

(1) The purpose of OAR 629-044-1000 to 629-044-1040 is to implement the provisions of ORS 477.027 and ORS 477.490.

(2) The purpose of OAR 629-044-1010 to 629-044-1015 is to establish criteria by which the wildland-urban interface shall be identified and classified pursuant to ORS 477.027.

(3) The purpose of OAR 629-044-1020 to 629-044-1026 is to set forth the criteria by which a statewide wildfire risk map must be developed and maintained pursuant to ORS 477.027.

(4) The purpose of OAR 629-044-1030 is to set forth the process for notification to property owners pursuant to ORS 477.027.

(5) The purpose of OAR 629-044-1035 is to set forth the process of integrating public input into the statewide wildfire risk map pursuant to ORS 477.027.

(6) The purpose of OAR 629-044-1040 is to set forth the process of how a property owner or local government may appeal the assignment of wildfire risk pursuant to ORS 477.027.

Statutory/Other Authority: ORS 477.015 - 477.027, ORS 526.016 & ORS 477.490
Statutes/Other Implemented: ORS 477.015 - 477.027 & ORS 477.490
History:
DOF 1-2022, amend filed 06/14/2022, effective 06/14/2022
DOF 3-2021, amend filed 10/22/2021, effective 10/22/2021
DOF 9-2002, f. 9-19-02, cert. ef.11-15-02

629-044-1005
Definitions

(1) The definitions set forth in ORS 477.001, shall apply.

(2) The following words and phrases, when used in OAR 629-044-1000 to 629-044-1040, shall mean the following:

(a) “Geographical area” means an area of land with similar characteristics that can be considered as a "unit" for the purposes of classification of the wildland-urban interface.

(b) "Hazard rating" is a numerical value describing the likelihood and intensity of a fire, based on specific factors or conditions including weather, climate, topography, and vegetation.  

(c) “Intermingles with wildland or vegetative fuels” means a minimum of 50% coverage of wildland or vegetative fuels.

(d) “Meets with wildland or vegetative fuels” means located within a 1.5-mile buffer from the edge of an area greater than 2 square mile with a minimum of 75% cover of wildland or vegetative fuels.

(e) “Occluded geographical area” means an area with a minimum of one structure or other human development per 40-acres within 1.5 miles of an area greater than 1 square mile but less than 2 square miles with a minimum of 75% cover of wildland or vegetative fuels.

(f) “Other human development” means essential facilities, special occupancy structures, or hazardous facilities as defined in ORS 455.447 that support community functions, public communication, energy, or transportation.

(g) "Structure" means any building that is at least 400 square feet.

(h) “Unincorporated community” has the meaning provided in OAR Chapter 660, Division 22.

(i) “Urban growth boundary” has the meaning provided in OAR Chapter 660, Division 15.

(j) “Vegetative fuels” means plants that constitute a wildfire hazard.

(k) “Wildland fuels” means natural vegetation that occurs in an area where development is essentially non-existent, including grasslands, brushlands, rangelands, woodlands, timberlands, or wilderness. Wildland fuels are a type of vegetative fuels. 

(l) “Wildfire Risk” means the wildfire impacts to values based on scientifically modeled wildfire frequency and wildfire intensity.

(m) “Wildland-Urban Interface” means a geographical area where structures and other human development meets or intermingles with wildland or vegetative fuels.

Statutory/Other Authority: ORS 477.015 - 477.027, ORS 526.016, ORS 477.490 & ORS 477.001
Statutes/Other Implemented: ORS 477.015 - 477.027 & ORS 477.490
History:
DOF 1-2022, amend filed 06/14/2022, effective 06/14/2022
DOF 3-2021, amend filed 10/22/2021, effective 10/22/2021
DOF 3-2007, f. 8-23-07, cert. ef. 12-31-07
DOF 9-2002, f. 9-19-02, cert. ef.11-15-02

629-044-1011
Wildland-Urban Interface Identification Criteria

(1) The Wildland-Urban Interface is a geographic area comprised of tax lots, or portions of tax lots that includes an average density of one structure or other human development per 40 acres and either:

(a) meets with wildland or vegetative fuels; or

(b) intermingles with wildland or vegetative fuels; or

(c) is an occluded geographical area.

(2) The Wildland-Urban Interface also includes:

(a) lands identified within an urban growth boundary or unincorporated community boundary by local comprehensive plans that meet the criteria in (1)(a); or

(b) a planned development, within the urban growth boundary or unincorporated communities, that is not identified in 1(a) but that is approved for development that meets the criteria in 1(a).

(3) If multiple structures or other human developments are located on a single tax lot, then the totality will be considered a single structure or other human development.

(4) Each tax lot in the State of Oregon shall be assigned a wildfire risk classification in accordance with 629-044-1020.

Statutory/Other Authority: ORS 477.015-027, ORS 526.016 & ORS 477.490
Statutes/Other Implemented: ORS 477.015-027
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1016
Periodic Wildland-Urban Interface Lands Identification and Classification

Tax lots identified as Wildland-Urban Interface shall be reviewed in conjunction with updates to the statewide wildfire risk map in accordance with OAR 629-044-1026.

Statutory/Other Authority: ORS 477.015-477.027, ORS 526.016 & ORS 477.490
Statutes/Other Implemented: ORS 477.015-477.027
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1021
Wildfire Risk Classification and Wildfire Hazard Rating

(1) Wildfire risk classifications are established by a range of wildfire hazard factors that determine a net value change that illustrates likely wildfire consequences.  Each net value change range is identified as a wildfire risk class as follows:

(a) No Wildfire Risk. A net value change of zero. Typically characterized as non-burnable areas.

(b) Low Wildfire Risk. A net value change from greater than 0.00 to 0.001911. Typically characterized as having the capacity to generate a wildfire which produces a flame length of less than 4 feet, a wildfire that exhibits little to no spotting, torching, or crowning.

(c) Moderate Wildfire Risk. A net value change of greater than 0.001911 to 0.137872. Typically characterized as having the capacity to generate a wildfire which produces a flame length of 4 to 6 feet, and that occasionally exhibits spotting, torching, or crowning.

(d) High Wildfire Risk. A net value change of greater than 0.137872 to 0.522288. Typically characterized as having the capacity to generate a wildfire which produces a flame length of 6 to 8 feet, and frequently exhibits spotting, torching, or crowning.

(e) Extreme Wildfire Risk. A net value change greater than 0.522288. Typically characterized as having the capacity to generate a wildfire which produces a flame length of over 8 feet, and exhibits frequent spotting, torching, or crowning.

(2) It is recognized that natural vegetation is highly variable and that the fuel models used in subsection (1) of this rule may not always accurately reflect expected wildfire behavior, due to variations in local species and vegetation conditions. Therefore, consistent with peer reviewed methods, modifications may be made to the hazard rating, net value change, and risk classification as necessary to ensure accuracy.

(3) Each wildfire risk class assignment shall be based on the average wildfire hazard rating of each tax lot.

(4) Each wildfire risk class shall consist of a net value change range. The net value change ranges that correlate to a given wildfire risk class shall be determined using a statistically objective methodology.

Statutory/Other Authority: ORS 477.490 & ORS 526.016
Statutes/Other Implemented: ORS 477.490
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1026
Statewide Wildfire Risk Map

(1) Oregon State University shall develop and maintain the Statewide Wildfire Risk Map in a publicly accessible format. The map shall be developed:

(a) using current, peer reviewed data sets when calculating wildfire risk;

(b) calculating wildfire risk as a combined hazard rating value incorporating how often wildfires occur and wildfire burn intensity;

(c) utilize fuel loading measured at the time of year when large wildfires generally occur; and

(d) shall include a layer that geospatially displays the locations of socially and economically vulnerable communities.

(2) The map and other publicly available web-based tools shall be updated in consultation with Oregon State University, within 12 months after updates to the most current wildfire risk assessment are available.

Statutory/Other Authority: ORS 526.016 & ORS 477.490
Statutes/Other Implemented: ORS 477.490
History:
DOF 3-2022, renumbered from 629-045-1025, filed 06/24/2022, effective 06/24/2022
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1031
Notification

(1) The State Forester shall provide written notice of properties classified as high or extreme wildfire risk.

(2) The written notice shall be sent to the property owner address included in the county assessor records.

(3) The written notice shall include:

(a) the wildfire risk class assignment;

(b) where a map of the property can be found in the publicly accessible mapping portal, including the average wildfire hazard value of the property;

(c) resources available to address wildfire risk;

(d) information regarding what the wildfire risk assignment means for the property owner; and

(e) information about how a property owner may appeal the assignment of wildfire risk class, including the specific elements that may be appealed.

(4) Prior to the effective date of updates to the Statewide Wildfire Risk Map, the Department shall hold regional public meetings.

(5) The Department shall provide a notice of the times and places of all statewide and regional meetings, and the other ways by which comments may be submitted, using a variety of notice methods designed to reach diverse audiences, both statewide and within each region.

(6) The Department, in consultation with Oregon State University, shall present anticipated changes to the Wildland-Urban Interface boundary and Wildfire Risk Classification assignments at a county scale.

(7) The meeting shall allocate time to receive input from any interested persons relating to the proposed wildfire risk class assignments.

(8) The Department shall establish and publicize a place where electronic and written comment may be received.

(9) Following the public meeting the Department, in consultation with Oregon State University, may make changes in the proposed wildfire risk classification assignments, hold additional meetings, and thereafter shall make final wildfire risk class assignments.

Statutory/Other Authority: ORS 477.490 & ORS 526.016
Statutes/Other Implemented: ORS 477.490
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1036
Locally Developed Wildfire Plans

(1) The following types of locally developed wildfire plans may be integrated into the wildfire risk mapping portal if the local jurisdiction chooses.

(a) Community Wildfire Protection Plans developed under the Healthy Forests Restoration Act;

(b) Natural Hazard Mitigation Plans developed under the Robert T. Stafford Disaster Relief and Emergency Assistance Act; or

(c) Firewise USA Action Plans developed under the Firewise USA Program administered by the National Fire Protection Association.

(2) Information in the types of locally developed wildfire plans identified in subsections (1)(a) thru (c) above, may complement, but does not supplant or supersede the Statewide Wildfire Risk Map.

Statutory/Other Authority: ORS 477.490 & ORS 526.016
Statutes/Other Implemented: ORS 477.490
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022

629-044-1041
Appeal of Wildfire Risk Assignment

(1) An affected property owner or local government may appeal the assignment of property by submitting an appeal in writing within 60 days of:

(a) The date that the wildfire risk map or update is posted on Oregon Explorer Map Viewer website; or

(b) The date that a correctly addressed notice is deposited with the postal service for mailing to the affected property owner.

(2) In the written appeal in section (1) of this rule, the property owner must specifically state:

(a) the objections to the wildfire risk class assignment;

(b) the change in wildfire risk assignment sought; and

(c) any pertinent facts that may justify a change in the wildfire risk class assignment, in accordance with ORS 477.490.

(3) Upon receipt of a written appeal of wildfire risk assignment, the State Forester:

(a) shall review the appeal to determine whether the appellant has standing and whether the appeal addresses the issues in subsection (2)(c).

(b) may contact the property owner or local government to clarify any pertinent facts identified in subsection (2)(c); and

(c) prepare a report describing the issue and reach a final decision of the matter by:

(A) reviewing whether the wildfire risk assignment and map were developed and maintained according to these rules and the most current wildfire assessment;

(B) reviewing for any error in the data that was used to determine the wildfire risk class assignment;

(C) reviewing any pertinent facts that may justify a change in the assignment; and

(D) providing the report to the appellant.

(d) the Department shall provide information to the public describing changes to the map based on approved appeals. The information shall be posted on the Department’s public website.

(4) A final decision of the matter issued under section (3) of this rule shall be a final order, and subject to appeal as prescribed by ORS 183.484.

Statutory/Other Authority: ORS 477.490 & ORS 526.016
Statutes/Other Implemented: ORS 477.490
History:
DOF 1-2022, adopt filed 06/14/2022, effective 06/14/2022