All county, city, town and school warrants, and all warrants or other evidences of indebtedness, drawn upon or payable from any public funds, shall bear interest at a rate or rates as authorized by the issuing authority.

Purpose—1970 ex.s. c 56: See note following RCW 39.52.020.

Cities and towns, local improvement district warrants, interest rate: RCW 35.45.130.