<Tr> <Td> Nova Scotia </Td> <Td_colspan="1"> 19 </Td> <Td_colspan="1"> 19 </Td> <Td> No vendor or employee of a vendor shall sell or give tobacco or a tobacco product to a person under the age of nineteen years . No person shall purchase tobacco or a tobacco product on behalf of, or for the purpose of resale or give tobacco or a tobacco product, to a person under the age of nineteen years . No person under the age of nineteen years may possess tobacco . </Td> </Tr> <Tr> <Td> Nunavut </Td> <Td_colspan="1"> None </Td> <Td_colspan="1"> 19 </Td> <Td> No person shall sell or supply, or offer to sell or supply, tobacco to a person who is less than 19 years old . </Td> </Tr> <Tr> <Td> Ontario </Td> <Td_colspan="1"> None </Td> <Td_colspan="1"> 19 </Td> <Td> No person shall sell or supply tobacco to a person who is less than 19 years old . No person shall sell or supply tobacco to a person who appears to be less than 25 years old unless he or she has required the person to provide identification and is satisfied that the person is at least 19 years old . </Td> </Tr> <Tr> <Td> Prince Edward Island </Td> <Td_colspan="1"> None </Td> <Td_colspan="1"> 19 </Td> <Td> No person shall sell or supply tobacco to a person under the age of 19 years . No person shall purchase or attempt to purchase tobacco on behalf of, or for the purpose of resale to, a person under the age of 19 years . It is legal to supply tobacco to a minor if it is solely for use in traditional Aboriginal spiritual or cultural practices or ceremonies . </Td> </Tr>

When was the smoking age set at 18 in the usa