Pursuant to the United States-Canada Free-Trade Agreement Implementation Act of 1988, Pub. L. 100-449, Canadian citizens who qualify under section 101 (a)(15)(E) of the Immigration and Nationality Act may be classified as E-1 or E-2. A citizen of Canada who is granted a change of nonimmigrant classification to that of treaty trader or treaty investor is required to present a valid, unexpired visa for reentry to the United States in the new classification as set for the under 8 CFR 212.1(1) . Upon approval of a change of status request by a citizen of Canada to that of treaty trader or investor, notice of the visa requirement for reentry shall be given.