The following are the agencies who regulate US and Canadian border crossing and their contact information: US Immigration and Naturalization Service (INS) Phone: 1-800-357-5283 Web site: www.ins.usdoj.gov US Customs Phone: 206-553-4676 Web site: www.customs.treas.gov Citizenship and Immigration Canada (CIC) Phone: 604-535-5450 Web site: cicnet.ci.gc.ca Canada Customs and Revenue Agency Phone: 604-535-9754 Web site: www.ccra-adrc.gc.ca