It is the ß-lactams + Tetracyclines combo test, an enzyme-linked receptor-binding assay that detects the ß-lactams group & Tetracyclines group, penicillin G, ampicillin, amoxicillin, oxacillin, cloxacillin, dicloxacillin, nafcillin, cefquinome, cefacetrile, cefalonium, cefazolin, cefoperazone, cephapirin, ceftiofur and Tetracycline, Doxycycline, Oxytetracycline, Chlortetracycline in raw, commingled cow milk at or below established tolerance and/or safe levels.