AF103.1 General. The following construction techniques are intended to resist radon entry and prepare the building for post-construction radon mitigation, if necessary (see Figure AF103.1). These techniques are required in high radon potential counties designated in Table AF101(1).
[Statutory Authority: RCW
19.27.031 and
19.27.074 WSR 23-23-104, § 51-51-60103, filed 11/15/23, effective 3/16/24; WSR 20-03-023, § 51-51-60103, filed 1/6/20, effective 7/1/20. Statutory Authority: RCW
19.27.074,
19.27.020, and chapters
19.27 and
34.05 RCW. WSR 07-01-090, § 51-51-60103, filed 12/19/06, effective 7/1/07.]