Possibly, but the two questions are independent and both have to be answered. Admission in the category turns on Canadian citizenship, on the Land Surveyor entry’s own degree-or-licence rule and on the American position genuinely being professional surveying. Whether he may seal a plat in that state is decided by the state board, and an admission grants nothing on that front.
Federal admission and state practice are not the same permission
Appendix 2 sets the qualification rule for the profession, and for Land Surveyor a baccalaureate degree or state, provincial or federal licensure satisfies it, so a Quebec licence answers the personal half of the test at the border. The position still has to consist of that profession rather than of field support carried out under another professional’s responsibility. Beyond immigration, every state regulates surveying practice on its own terms, and a foreign licence is rarely accepted without an application, sometimes an examination, and often an evaluation of the applicant’s education and experience.
The practical order matters: begin the state application early, because it usually takes longer than anything at the border, and structure the first months of the job around what he may lawfully do while it is pending. An employer that has promised clients sealed drawings from day one has made a commitment the immigration process cannot rescue.