PDFWAC 296-150V-1100

What are the flame-spread limitations?

The flame-spread requirements are that all walls and ceilings must be of 200 flame-spread or less.
[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, § 296-150V-1100, filed 8/31/99, effective 10/1/99.]