Introduction. An agreement effective August 1, 1984, between the United States and Canada improves Social Security protection for people. Agreement between the Government of the United States of America and the Government of Canada with respect to Social Security.Download International Social Security Agreements forms (You will first need to select your country on the page). To file a claim for US or Canadian benefits under the Agreement, follow the instructions in "Claims for benefits" section. The International Fuel Tax Agreement (IFTA) is a base jurisdiction fuel tax agreement. You will not be required to present a proof document if you know your SSN and DMV is able to electronically verify it. Coastal Carolina University is a dynamic, public liberal arts institution located in Conway, SC just minutes from the resort area of Myrtle Beach. An official website of the United States government. Here's how you know. Graphic with QR code.