All forms required to carry out the provisions of the statutes which are now used, or to be used in the future in connection with the assessment and collection of taxes, shall meet the standards as prescribed by the department of revenue. The forms now in use in the county assessors' and treasurers' offices shall be submitted to the department of revenue for review and approval upon request by the department.

It will be the policy of the department of revenue to permit use of all forms presently in use if, in the department's judgment, they adequately meet the standards and fulfill the statutory requirements. Once the department has approved the forms used in an office, the forms may be used until, in the opinion of the department, the forms need revision because of obsolescence caused by time or statutory change.

All forms shall be submitted in duplicate so that one copy of the approved form may be retained for the department of revenue.

After a complete review of all county and state forms, the state department of revenue will compile and adopt an official standard forms list for each county. (Rule derived from RCW 84.08.020; 84.48.010; 84.56.050; TCR 10-30-1940.)