The public college 2+3 immigration program is a public college, university or research institute that has studied in Canada for more than 2 years. After graduation, you can apply for a 3-year Post-Graduate Work Permit (Post-Graduate Work Permit). But in fact, because of the different educational systems, the length of the work permit that can be obtained is also different. However, as long as you work for one year, you can submit an immigration application to the Canadian government through the Express Entry-Experience Immigration CEC application.