nj idrc treatnment program drug testing question

hello,

ive been recommended to go to the idrc 16 week treatment program. started this past week but was not asked to piss test this week on my first group session. my question is has anyone else been through the idrc treatment program? i dont smoke as much as i used 2, maybe twice a week, never 2 days before the session. i know alcohol is out of your system quick and easy so i dont know how they would test for that in the longevity. could anyone give me advice and their stories of what worked best? i heard about synthetic urine and the rapid clear cherry detox. i dont think they use labcorp, and since its a state-funded facility, i dont know if they use the high tec testing machines or maybe test a certain period back. please let me know. all comments and stories appreciated.