Washington · Regulations
Chapter 51-11C — STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE INTERNATIONAL ENERGY CONSERVATION CODE, COMMERCIAL
272 sections
272 sections
- WAC 51-11C-4037WAC 51-11C-4037. Section C403.7 — Ventilation and exhaust systems
- WAC 51-11C-4038WAC 51-11C-4038. Section C403.8 — Fan and fan controls
- WAC 51-11C-4039WAC 51-11C-4039. Section C403.9 — Heat rejection and heat recovery equipment
- WAC 51-11C-10100WAC 51-11C-10100. Section C101 — Scope and general requirements
- WAC 51-11C-10140WAC 51-11C-10140. Section C101.4 — Applicability
- WAC 51-11C-10150WAC 51-11C-10150. Section C101.5 — Compliance
- WAC 51-11C-10200WAC 51-11C-10200. Section C102 — Alternative materials, design and methods of construction and equipment
- WAC 51-11C-10300WAC 51-11C-10300. Section C103 — Construction documents
- WAC 51-11C-10400WAC 51-11C-10400. Section C104 — Fees
- WAC 51-11C-10500WAC 51-11C-10500. Section C105 — Inspections
- WAC 51-11C-10600WAC 51-11C-10600. Section C106 — Notice of approval
- WAC 51-11C-10700WAC 51-11C-10700. Section C107 — Validity
- WAC 51-11C-10800WAC 51-11C-10800. Section C108 — Referenced standards
- WAC 51-11C-10900WAC 51-11C-10900. Section C109 — Stop work order
- WAC 51-11C-11000WAC 51-11C-11000. Section C110 — Board of appeals
- WAC 51-11C-11100WAC 51-11C-11100. Section C111 — Violations
- WAC 51-11C-11200WAC 51-11C-11200. Section C112 — Liability
- WAC 51-11C-20100WAC 51-11C-20100. Section C201—General
- WAC 51-11C-20201WAC 51-11C-20201. Section C202.1 — A
- WAC 51-11C-20202WAC 51-11C-20202. Section C202.2 — B
- WAC 51-11C-20203WAC 51-11C-20203. Section C202.3 — C
- WAC 51-11C-20204WAC 51-11C-20204. Section C202.4 — D
- WAC 51-11C-20205WAC 51-11C-20205. Section C202.5 — E
- WAC 51-11C-20206WAC 51-11C-20206. Section C202.6 — F
- WAC 51-11C-20207WAC 51-11C-20207. Section C202.7 — G
- WAC 51-11C-20208WAC 51-11C-20208. Section C202.8 — H
- WAC 51-11C-20209WAC 51-11C-20209. Section C202.9 — I
- WAC 51-11C-20212WAC 51-11C-20212. Section C202.12 — L
- WAC 51-11C-20213WAC 51-11C-20213. Section C202.13 — M
- WAC 51-11C-20214WAC 51-11C-20214. Section C202.14 — N
- WAC 51-11C-20215WAC 51-11C-20215. Section C202.15 — O
- WAC 51-11C-20216WAC 51-11C-20216. Section C202.16 — P
- WAC 51-11C-20218WAC 51-11C-20218. Section C202.18 — R
- WAC 51-11C-20219WAC 51-11C-20219. Section C202.19 — S
- WAC 51-11C-20220WAC 51-11C-20220. Section C202.20 — T
- WAC 51-11C-20221WAC 51-11C-20221. Section C202.21 — U
- WAC 51-11C-20222WAC 51-11C-20222. Section C202.22 — V
- WAC 51-11C-20223WAC 51-11C-20223. Section C202.23 — W
- WAC 51-11C-20224WAC 51-11C-20224. Section C202.24—X, Y, Z
- WAC 51-11C-30100WAC 51-11C-30100. Section C301—Climate zones
- WAC 51-11C-30200WAC 51-11C-30200. Section C302—Design conditions
- WAC 51-11C-30310WAC 51-11C-30310. Section 303.1 — Identification
- WAC 51-11C-30315WAC 51-11C-30315. Table C303.1.5 — U -factors for spandrel panels and glass curtain walls
- WAC 51-11C-30320WAC 51-11C-30320. Section C303.2 — Installation
- WAC 51-11C-40100WAC 51-11C-40100. Section C401 — General
- WAC 51-11C-40210WAC 51-11C-40210. Section C402.1 — General (Prescriptive)
- WAC 51-11C-40211WAC 51-11C-40211. Section C402.1.1 — Low energy buildings
- WAC 51-11C-40212WAC 51-11C-40212. Section C402.1.2 — Equipment buildings
- WAC 51-11C-40213WAC 51-11C-40213. Section C402.1.3 — Insulation component R -value method
- WAC 51-11C-40214WAC 51-11C-40214. Section C402.1.4 — Assembly U -factor, C -factor, or F -factor-based method
- WAC 51-11C-40215WAC 51-11C-40215. Section C402.1.5 — Component performance alternative
- WAC 51-11C-40220WAC 51-11C-40220. Section C402.2 — Specific insulation requirements
- WAC 51-11C-40221WAC 51-11C-40221. Section C402.2.1 — Roof assembly
- WAC 51-11C-40222WAC 51-11C-40222. Section C402.2.2 — Above-grade walls
- WAC 51-11C-40223WAC 51-11C-40223. Section C402.2.3 — Floors
- WAC 51-11C-40224WAC 51-11C-40224. Section C402.2.4 — Slab-on-grade
- WAC 51-11C-40225WAC 51-11C-40225. Section C402.2.5 — Below-grade walls
- WAC 51-11C-40226WAC 51-11C-40226. Section C402.2.6 — Insulation of radiant heating systems
- WAC 51-11C-40227WAC 51-11C-40227. Section C402.2.7 — Airspaces
- WAC 51-11C-40228WAC 51-11C-40228. Section C402.2.8 — Above-grade exterior concrete slabs
- WAC 51-11C-40229WAC 51-11C-40229. Section C402.2.9 — Vertical fenestration intersection with opaque walls
- WAC 51-11C-40230WAC 51-11C-40230. Section C402.4 — Fenestration
- WAC 51-11C-40231WAC 51-11C-40231. Section C402.4.1 — Maximum area
- WAC 51-11C-40232WAC 51-11C-40232. Section C402.4.2 — Minimum skylight fenestration area
- WAC 51-11C-40233WAC 51-11C-40233. Section C402.4.3 — Maximum U -factor and SHGC
- WAC 51-11C-40234WAC 51-11C-40234. Section C402.4.4 — Doors
- WAC 51-11C-40240WAC 51-11C-40240. Section C402.5 — Air leakage-thermal envelope
- WAC 51-11C-40241WAC 51-11C-40241. Section C402.5.1 — Air barriers
- WAC 51-11C-40243WAC 51-11C-40243. Section C402.5.5 — Rooms containing fuel-burning appliances
- WAC 51-11C-40244WAC 51-11C-40244. Section C402.5.6 — Doors and access openings
- WAC 51-11C-40245WAC 51-11C-40245. Section C402.5.7 — Air intakes, exhaust openings, stairways and shafts
- WAC 51-11C-40246WAC 51-11C-40246. Section C402.5.8 — Loading dock weatherseals
- WAC 51-11C-40247WAC 51-11C-40247. Section C402.5.9 — Vestibules
- WAC 51-11C-40248WAC 51-11C-40248. Section C402.5.10 — Recessed lighting
- WAC 51-11C-40310WAC 51-11C-40310. Section C403.1 — General
- WAC 51-11C-40314WAC 51-11C-40314. Section C403.1.4 — HVAC heating equipment
- WAC 51-11C-40320WAC 51-11C-40320. Section C403.2 — System design
- WAC 51-11C-40321WAC 51-11C-40321. Section C403.2.1 — Zone isolation
- WAC 51-11C-40322WAC 51-11C-40322. Section C403.2.2 — Ventilation and exhaust
- WAC 51-11C-40323WAC 51-11C-40323. Section C403.2.3 — Fault detection and diagnostics
- WAC 51-11C-40324WAC 51-11C-40324. Section C403.2.4 — Variable flow capacity
- WAC 51-11C-40330WAC 51-11C-40330. Section C403.3 — Equipment selection
- WAC 51-11C-40331WAC 51-11C-40331. Section C403.3.1 — Equipment and system sizing
- WAC 51-11C-40332WAC 51-11C-40332. Section C403.3.2 — HVAC equipment performance requirements
- WAC 51-11C-40333WAC 51-11C-40333. Section C403.3.3 — Hot gas bypass
- WAC 51-11C-40334WAC 51-11C-40334. Section C403.3.4 — Boilers
- WAC 51-11C-40335WAC 51-11C-40335. Section C403.3.5 — Dedicated outdoor air systems
- WAC 51-11C-40336WAC 51-11C-40336. Section C403.3.6 — Ventilation for Group R-2 occupancy
- WAC 51-11C-40337WAC 51-11C-40337. Section C403.3.7 — Hydronic system flow rate
- WAC 51-11C-40338WAC 51-11C-40338. Section C403.3.8 — Hydronic coils
- WAC 51-11C-40340WAC 51-11C-40340. Section C403.4 — HVAC system controls
- WAC 51-11C-40341WAC 51-11C-40341. Section C403.4.1 — Thermostatic controls
- WAC 51-11C-40342WAC 51-11C-40342. Section C403.4.2 — Off-hour controls
- WAC 51-11C-40343WAC 51-11C-40343. Section C403.4.3 — Hydronic systems controls
- WAC 51-11C-40344WAC 51-11C-40344. Section C403.4.4 — Part load controls
- WAC 51-11C-40345WAC 51-11C-40345. Section C403.4.5 — Pump isolation
- WAC 51-11C-40346WAC 51-11C-40346. Section C403.4.6 — Variable flow controls
- WAC 51-11C-40347WAC 51-11C-40347. Section C403.4.7 — Combustion heating equipment controls
- WAC 51-11C-40348WAC 51-11C-40348. Sections C403.4.8 through C403.4.10 — Group R requirements
- WAC 51-11C-40349WAC 51-11C-40349. Sections C403.4.11 and C403.4.12