Canadian Border Services Agency can be contacted by email at firstname.lastname@example.org or by phone in the United States at 1-204-983-3500, says the CBSA website. Dial 1-800-461-9999 for calls inside Canada.
For inquiries other than general questions, the CBSA states that people should visit its website. Every province and territory contains multiple offices. Most CBSA offices provide services free of charge. Some airport and cruise ship operators have agreements with the CBSA to charge a fee to cover costs. The CBSA provides information about identification requirements, what goods can be brought over the border, identification requirements for residents and nonresidents, and how to obtain a Nexus card.