What are acceptable levels of THC in a lab test?

Answer:
You fail for marijuana if you have more than 50ng/ml in your system




..... Initial Test (IMMUNOASSAY) - 50ng/ml
Confirmation test (usually GC/MS or LC/MS/MS) - 15ng/ml ......
First answer by Maxiogee. Last edit by Mike.o. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 17 [recommend question].