NAFTA allows certain professionals who are U.S. or Mexican citizens to obtain a work permit without first having to obtain a Labour Market Impact Assessment (LMIA). University professors, scientists and physicians are generally LMIA exempt under NAFTA, Appendix 1603.D.1 A similar exemption from the LMIA exists for Chilean nationals.
Permanent Residents (Green Card holders) of the U.S. or persons with Permanent Resident status in Mexico are not covered under the NAFTA provisions.
Documentation required at the port of entry is described under "Crossing the Border".
The duration of the work permit issued is at the discretion of the border officer.The NAFTA/CCFTA permit is intended to be temporary, and permit holders are strongly encouraged to make an application for Permanent Residence before the permit expires.
If necessary, renewal can be obtained in Canada. The renewal must be applied for prior to the expiry of the existing work permit to ensure uninterrupted eligibility for employment by Queen's.