In many such cases, the AHJs typically do not permit such installation methods however, the decision is actually based on the AHJs interpretation of the codes. Another recommendation is to discuss your concerns with the local Authority Having Jurisdiction (AHJ). In a case where a contractor is doing work using J hooks in the hallways and sprinkler pipe and electrical conduit in the individual rooms, one recommendation is to add a statement to your bid documents stating, '.contractors are prohibited from attaching telecommunications cables directly to conduit systems and conduit system hardware.' or something similar.
Virtual Instructor-Led Trainings (vILT).