The following is for travel into Canada at any border, not just Maine, but here ya go! "For Land/Sea Travel On January 31, 2008 , U.S. and Canadian citizens entering
U.S. Customs Border Protection Travel

Travel News: U.S. Citizens/Lawful Permanent Residents: For International Visitors: Clearing CBP: Find out what documents are required and how to get them.
Canada Crossing the Border Reviews of Hotels Flights

This article covers travel to Canada. The documents required to cross the Canada-U.S. border depend on your citizenship, your age, and how you're travelling.
Crossing the Canadian Border What You Need to Know to Visit Canada

Crossing the border into Canada should go smoothly if you're Overview of documentation US citizens need to enter Canada, including what documents to bring.
Tips for Traveling Abroad

if calling from the U.S. or Canada, Required Travel Documents and Other Important Documentation. Passport Requirements & How to Apply for a Passport.
Types of travel documents Passport Canada

Passport Canada issues over 4 million travel documents each year, including Convention refugees and persons in need of protection. Endorsements:
Travel Documents What Travel Documents Will I Need for Student

Answer: You will always need identification when you travel. You will almost always need a passport (learn about Mexico and Canada passport requirements and
Documents needed to travel by car from Canada to us

Which document is needed to travel from Canada to the US by car? A valid passport . An "enhanced" driver's licence Documents needed to travel by car from Maine to Canada
Traveling to Canada for business Fermilab Business Services

Please review Documents Required for Traveling to Canada for business. Documents you must have at the border into Canada: •a passport or travel document that is
What documents do i need to travel to canada from the US?

Best Answer: Since you are a resident of the US there are no special medical requirements for travelling to Canada and no immunization certificates will