The regional transportation planning program was authorized by the 1990 legislature as part of the state's Growth Management Act. The program is contained in chapter 47.80 RCW, with funding appropriations made as part of the Department of Transportation Appropriations Act.
Wash. Admin. Code § 468-86-010
Statutory Authority: RCW 47.80.070 and SHB 1928, Section 5. 97-09-046 (Order 169), § 468-86-010, filed 4/15/97, effective 5/16/97.