Eman,
I'm not sure, but I have heard Inspectors near me express concern about them. I think that one difference is that some are UV rated and some are not? (I'm guessing here) but not having the right attributes for the situation or location would make them unsuitable.
I have always used metal wire (baling wire) where it was actually supporting cabling because of this. I'd only use plastic cable ties where the object was to 'neaten-up' things a bit.
I think we've had this conversation before somewhere.
Bill
