WAC 51-51-0313. Section R313 — Automatic fire sprinkler systems

R313.1 Townhouse automatic fire sprinkler systems. An automatic residential fire sprinkler system shall be installed in a townhouse unit. EXCEPTIONS: 1. An automatic residential fire sprinkler system shall not be required where additions or alterations are made to an existing townhouse unit that does not have an automatic residential fire sprinkler system installed. 2. Townhouse buildings containing no more than four townhouse units . R313.1.1 Design and installation. Automatic residential fire sprinkler systems for a townhouse unit shall be designed and installed in accordance with Section P2904 or NFPA 13D. R313.2 One- and two-family dwellings automatic sprinkler systems. This section is not adopted.