Chapter 51-55 WAC

STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE WILDLAND-URBAN INTERFACE CODE

Last update: 3/17/26

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Section listing
WAC Sections
HTMLPDF51-55-001Authority.
HTMLPDF51-55-002Purpose.
HTMLPDF51-55-003International Wildland-Urban Interface Code.
HTMLPDF51-55-008Implementation.
HTMLPDF51-55-0100Scope and administration.
HTMLPDF51-55-0200Chapter 2Definitions.
HTMLPDF51-55-0300Wildland-urban interface areas.
HTMLPDF51-55-0400Wildland-urban interface area requirements.
HTMLPDF51-55-0500Special building construction regulations.
HTMLPDF51-55-0600Fire protection requirements.
HTMLPDF51-55-0700Chapter 7Vegetation management plan.
HTMLPDF51-55-0800Chapter 8Fire hazard severity form.
HTMLPDF51-55-0900Chapter 9Fire danger rating system.
HTMLPDF51-55-1000Chapter 10Referenced standards.


PDF51-55-001

Authority.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-001, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-001, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-002

Purpose.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-002, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-002, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-003

International Wildland-Urban Interface Code.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-003, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-003, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-008

Implementation.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-008, filed 3/17/26, effective 4/17/26. Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-107, § 51-55-008, filed 11/15/23, effective 3/16/24. Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-008, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0100

Scope and administration.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0100, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0100, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0200

Chapter 2Definitions.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0200, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0200, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24]



PDF51-55-0300

Wildland-urban interface areas.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0300, filed 3/17/26, effective 4/17/26. Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-107, § 51-55-0300, filed 11/15/23, effective 3/16/24. Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0300, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0400

Wildland-urban interface area requirements.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0400, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0400, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0500

Special building construction regulations.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0500, filed 3/17/26, effective 4/17/26. Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-107, § 51-55-0500, filed 11/15/23, effective 3/16/24. Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0500, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0600

Fire protection requirements.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0600, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0600, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0700

Chapter 7Vegetation management plan.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0700, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0700, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0800

Chapter 8Fire hazard severity form.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0800, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0800, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-0900

Chapter 9Fire danger rating system.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-0900, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-0900, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]



PDF51-55-1000

Chapter 10Referenced standards.

Reserved.
[Statutory Authority: RCW 19.27.031, 19.27.074, and 19.27.560. WSR 26-07-075, s 51-55-1000, filed 3/17/26, effective 4/17/26; WSR 23-02-056, 23-12-109, and 23-20-028, § 51-55-1000, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]