Interest Rate (Excise Tax Act) Regulations SOR /91-19 [Repealed, SOR/2006-230, s. 4] – 2006-09-28 EXCISE TAX ACT Registration 1990-12-18 Regulations Prescribing Rules for Determining a Rate of Interest for the Purposes of the Excise Tax Act P.C. 1990-2728 1990-12-18