different organizations award different CECs even for the same class / course. And one hour of classroom time does not necessarily equate to one contact hour. If you need to pay quite a bit of money for some CECs, I would contact your PT organization to make sure what they will grant you.
All organizations I know also have a process by which you can apply for approval of your CECs (against a fee, of course). However, some are very stingy in what they are giving you in terms of CECs. For example, I was renewing my water aerobics certification with AEA, and they will only grant 10.0 CECs no matter what you apply for. Personally, I (almost) thought it was hilarious that my NASM CES certification was not sufficient to renew a water aerobics cert!