There are several documents that you can use to cross the border into the United States. Adults must have one of the following documents:
- Valid passport
- NEXUS card
- FAST card (Land and sea crossings only)
- Enhanced drivers license (Land and sea crossings only)
- Secure Certificate of Indian Status (Land and sea crossings only)
It is worth noting that all air travelers are advised to carry their passport as well as a NEXUS card. Canadian citizens aged 15 and under can cross the US ? Canada land or sea border using proof of citizenship such as a birth certificate or citizenship card. Children traveling in a group can also present proof of citizenship up to the age of 19 years.