I am from a visa-exempt country or have a U.S. Green Card and want to extend my work or study permit. Do I need to apply for an eTA? January 22, 2020 21:49 Updated No. As of May 1, 2017 eligible applicants are issued an eTA when CIC approves their study or work permits. If you applied before May 1 2017, check the information on extending your work permit or study permit.