DDA defines mid-frequency support as support for selected SIS activities that most people perform every two to four days.
Wash. Admin. Code § 388-828-9570
08-15-091, recodified as § 388-828-9570, filed 7/17/08, effective 7/17/08. Statutory Authority: RCW 71A.12.30 [71A.12.030] and Title 71A RCW. 08-12-037, § 388-828-10130, filed 5/30/08, effective 7/1/08.