On or before the first day of August in the calendar year before the assessment will be collected, the conservation district must file the proposed system of assessments with the county legislative authority. The conservation district must also provide to the county legislative authority a proposed budget for the first year the assessment will be collected.

Filing means the county legislative authority, or its authorized representative such as the county auditor or clerk, has physically received the proposed system of assessments and the proposed budget by the close of business on or before the first day of August. Along with the proposed system of assessments and proposed budget, a copy of the resolution passed by the conservation district board of supervisors is to be provided to the county asking the county legislative authority to impose a special assessment for natural resource conservation consistent with RCW 89.08.400 and this rule.