Well,
Keep n mind, most temp agency's are basically job pools.
That is, if an employer needs somebody ASAP and not nessecerily a permanent position, that is when they appraoch the temp agency.

How long it takes is very dependent on your skill-set matching up with what one of their employers needs.

As far as the drug testing, I also think it really depends on the job opening.

 

i can tell you a bit more than i did about temp agencies when you originally asked me.

temp agencies have all sorts of jobs available. you basically fill out a sheet and describe what kind of work you're looking for and how far you're willing to travel.

sometimes the jobs don't last long. sometimes the jobs last half a year. sometimes longer. and sometimes they even turn into a long term job for you.

as far as how long it takes you to get work it all depends.

drug test, i'd lay off just like i would if i were using before looking for any kind of work.

better to go without the substances for a bit and get a job then continued substance use and not get a job.

also, the temp agency will take a portion of your pay, but it's not too much. any $ is better than no $.

good luck.