CBSA is planning to issue a revised Customs Notice regarding the following tariff items 8903.10.00, 8903.91.00, 8903.92.00 and 8903.99.90 that are no longer subject to surtax.  When importing these goods, no mention of surtax needs to be made.
Where surtax has been on these goods on Form B3 after April 30, a B2 must be filed to request a refund of surtax pursuant to section 74(1)(g) as duties overpaid as a result of an error.