This is the 321st most frequent Hungarian word.
rendelkező
"Rendelkező" means "possessing authority or control" or "dispositive."
Here, 'rendelkező' is an adjective describing 'részek' (sections), referring to their nature of being prescriptive or containing directives.
Az új törvény törvényileg erős rendelkező részeket tartalmaz.
The new law contains strong prescriptive sections.
In this sentence, 'rendelkező' functions as a participial adjective, describing Anna's role as someone who has authority over the class.
Anna, mint az osztály felett rendelkező tanár, döntést hozott az ügyben.
Anna, as the teacher in charge of the class, made a decision on the matter.
In this context, 'rendelkező' is part of a descriptive phrase, identifying the type of permissions (those that give authority) needed for the task.