(1) Local governments may adopt moratoria or other interim official controls as necessary and appropriate to implement chapter 90.58 RCW.

(2) A local government adopting a moratorium or control under this section must:

(a) Hold a public hearing on the moratorium or control within sixty days of its adoption;

(b) Adopt detailed findings of fact that include, but are not limited to, justifications for the proposed or adopted actions and explanations of the desired and likely outcomes;

(c) Notify the department of the moratorium or control immediately after its adoption. The notification must specify the time, place, and date of any public hearing required by this subsection;

(d) Provide that all lawfully existing uses, structures, or other development shall continue to be deemed lawful conforming uses and may continue to be maintained, repaired, and redeveloped, so long as the use is not expanded, under the terms of the land use and shoreline rules and regulations in place at the time of the moratorium.

(3) A moratorium or control may be effective for up to six months if a detailed work plan for remedying the issues and circumstances necessitating the moratorium or control is developed and made available for public review. A moratorium or control may be renewed for two six-month periods if the local government complies with subsection (2)(a) of this section before each renewal. If a moratorium or control is in effect on the date a proposed master program or amendment is submitted to the department, the moratorium or control must remain in effect until the department's final action under RCW 90.58.090; however, the moratorium expires six months after the date of submittal if the department has not taken final action.