The TN visa is a non-immigrant visa category that allows certain Canadian and Mexican citizens to work in the United States temporarily. It is based on the North American Free Trade Agreement (NAFTA), which has since been replaced by the United States-Mexico-Canada Agreement (USMCA). The TN visa is designed to facilitate the movement of professionals between the three North American countries for employment in specific occupations.  To be eligible for a TN visa, you must be a citizen of either Canada or Mexico and have a job offer from a U.S. employer in an eligible profession. Foreign nationals in TN status may work for multiple employers at the same time. Individuals in TN status may add employers while in the United States by filing an appropriate petition with USCIS service center.   Canadians holding TN classification can add employers by applying for readmission at the port-of-entry.   Employees can also depart the United States and request the addition of the new employer to a TN visa at a Consular Post.   As the TN designation is employer-specific, each employer should be annotated on the visa.   Article posted by:                 Edyta Salata, Esq. Ms. Salata focuses her practice in U.S. immigration law. She was named a "Super Lawyer®-Rising Star" and earned the highest Peer Review Rating of AV®-Preeminent™ from the Martindale-Hubbell Legal Directory attesting to her legal ability and professional ethical standards. Ms. Salata received her Juris Doctor from University of Illinois College of Law in May 2002 and Bachelor of Arts magna cum laude from Loyola University Chicago in January 1999. Ms. Salata is an active member of the American Immigration Lawyers Association (AILA); she served as a co-chair of the New Americans Initiative and UPL Committees and a member of the U.S. Customs and Border Protection Committee (CBP) of the Chicago Chapter. She was also named as chairperson of the Immigration Law Committee of the DuPage County Bar Association. Ms. Salata has written extensively in the area of immigration law and is a frequent speaker at bar association conferences.