Prof;
We are restricted by contract to two hours on position at any time. That however isn't always adhered too by the agency and then we have to grieve it...
As to breaks, we are supposed to get one 30 minute meal break and two 15 minute breaks in a day. That other than on really bad days doesn't happen though. We normally get more than that in almost all cases........
We can't work more than six days without a 24 hour break and we can't work more than 10 hours a day... That is law.
Hope this helps