WSR 10-16-093



[ Filed July 30, 2010, 2:10 p.m. ]

Original Notice.

Exempt from preproposal statement of inquiry under RCW 34.05.310(4).

Title of Rule and Other Identifying Information: Amendment of chapter 51-50 WAC, Washington State Building Code.

Hearing Location(s): Spokane City Council Chambers, West 808 Spokane Falls Boulevard, Spokane, WA, on September 10, 2010, at 10:00 a.m.; and at Senate Hearing Room 2, Cherberg Building, Washington State Capitol Campus, Olympia, Washington, on September 24, 2010, at 10:00 a.m.

Date of Intended Adoption: October 15, 2010.

Submit Written Comments to: John Cochran, Council Chair, P.O. Box 41014, Olympia, WA 98504-1014, e-mail, fax (360) 586-9383, by September 24, 2010.

Assistance for Persons with Disabilities: Contact Peggy Bryden by August 26, 2010, TTY (360) 753-7427 or (360) 725-2966.

Purpose of the Proposal and Its Anticipated Effects, Including Any Changes in Existing Rules: Chapter 51-50 WAC, Washington State Building Code.

Section 504.3: Will change the maximum number of stories in Group R-1 and R-2 under certain conditions.

Section 504.4: Corrects numbering.

Reasons Supporting Proposal: Permits an additional story for wood-frame construction.

Statutory Authority for Adoption: RCW 19.27.074.

Statute Being Implemented: Chapter 19.27 RCW.

Rule is not necessitated by federal law, federal or state court decision.

Name of Proponent: State building code council, governmental.

Name of Agency Personnel Responsible for Drafting and Implementation: Joanne McCaughan, P.O. Box 41014, Olympia, WA 98504-1014, (360) 725-2970; and Enforcement: Local jurisdictions.

No small business economic impact statement has been prepared under chapter 19.85 RCW. These provisions would allow, not require, an additional story on wood-frame construction; since the changes are optional, not mandatory, they will have no disproportionate impact on small businesses.

A cost-benefit analysis is not required under RCW 34.05.328. The state building code council is not listed in this section as one of the agencies required to comply with this statute.

July 26, 2010

John C. Cochran

Council Chair


WAC 51-50-0504   Section 504 -- Height.  

504.3 Stair enclosure pressurization increase. For Group R1 and R2 occupancies in buildings of Type VA construction equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1, the maximum number of stories permitted in Section 504.2 may be increased by one provided the interior exit stairways and ramps are pressurized in accordance with Section 909.20 and Section 909.11.

504.4 Roof structures. (Same as 2009 IBC except Section number revised)


Washington State Code Reviser's Office