You probably mean that PhD students, just like any other students, may work ON CAMPUS up to 20 hours per week without any special work permit. They can also apply for an OFF CAMPUS employment authorization based on their student permit, also up to 20 hours per week (no limit during recess).
However, receiving PER does not give us ***t! We are still locked in within student permit regulations until we get our PR cards (even AOR does not help us in any way). My minimum program of study (3 years) ends August 31st. Let's be realistic - even based on the most optimistic case scenario, it will take at least 12 months for the PR process to conclude. So, question for me is what do I do between August, 2012, and May of 2013? I have tried to learn if there is any way to stay in status while waiting for the PR decision. Here are the options I have found:
1) Apply for the extention of my "Study Permit" and then reapply for "Off-campus employment authorization" based on the new study permit. However, before applying for the extension of "Study Permit" with CIC, I need to ask my university to grant me "Full Time Thesis Continuation" status. Otherwise, plain Thesis Continuation does not provide enough grounds to request the extention of study permit;
2) Get a limited term position contract (1 to 3 year teaching position) at some university and request "Work Permit". This requires job offer, labour-market opinion and quick exit and re-entry into Canada while TRV is still valid.
3) Have my spouse enroll in some eligible post secondary program. Then, based on my spouse's study permit I can get "Open Work Permit."
That's all the options I found... Does anyone else know of any other options?