An exclusion order requires you to get written authorization before returning to Canada during the one year after the order is enforced. If the exclusion was based on misrepresentation, you're barred for five years. Once the exclusion period ends, you can return to Canada without needing special permission.
(1)225 (1) For the purposes of subsection 52(1) of the Act, and subject to subsections (3) and (4), an exclusion order obliges the foreign national to obtain a written authorization in order to return to Canada during the one-year period after the exclusion order was enforced.
(2)(2) For the purposes of subsection 52(1) of the Act, the expiry of a one-year period following the enforcement of an exclusion order, or a five-year period if subsection (3) applies, is a circumstance in which the foreign national is exempt from the requirement to obtain an authorization in order to return to Canada.
(3)(3) A foreign national who is issued an exclusion order as a result of the application of paragraph 40(2)(a) of the Act must obtain a written authorization in order to return to Canada within the five-year period after the exclusion order was enforced.
(4)(4) For the purposes of subsection 52(1) of the Act, the making of an exclusion order against a foreign national on the basis of inadmissibility under paragraph 42(1)(b) of the Act is a circumstance in which the foreign national is exempt from the requirement to obtain an authorization in order to return to Canada.