(1) "Department" means the department of archaeology and historic preservation.

(2) "Director" means the director of the department.

(3) "Washington state main street program" or "WSMSP" means the program established by the department pursuant to chapter 43.360 RCW.

(4) "Washington main street community" means a local community designated by the department pursuant to chapter 43.360 RCW.

(5) "Eligible organization" means a nonprofit organization under internal revenue code sections 501 (c)(3) or (c)(6), with the sole mission of revitalizing a downtown or neighborhood commercial district area.