Depending on what your charge is and who your p.o. Officer is, determines how often you will be tested. If you have a drug charge depending on the severity of the charge and the drug then you will most likely be tested everytime you see your p.o. If you prove that you are clean and doing everything that you are supposed to IE: Fees and community service and have been habitually passing then you will most likely not be tested every appointment. Don't get cocky though because they love to throw a wrench out there and give you one when you least expect it.
