can hvac technician apply csa permit?
Not enough information ???
Are you trying to get an electrical permit with the ESA, Electrical Safety Authority?
https://esasafe.com/fees-and-forms/forms/submit-a-new-notification/
If you're doing a lot of work, look at joining the RBO program, Risk-based Oversight, to reduce permit costs.
https://esasafe.com/risk-based-oversight/what-is-rbo/