Minors can only enter with their original birth certificate.
It must be purchased prior to arrival in the Dominican Republic. Canadians packages usually include tourist cards, others may purchase one at selected Dominican Consulates, airline counters or at the arrival upon entry. Visitors in general should always confirm with travel agents or the Dominican Consulate of the necessary travel documentation. The time in the Dominican Republic is in the same time zone as the eastern US seaboard, but daylight Savings Time is in effect all year-round. So places like Toronto or New York are one hour behind in the fall.