The truck driver carries a special license, as the law 'requires' (him to do). = The truck driver carries a special license, 'as required by' law.
What will be 'required' of me if I accept the job? = What will I be 'required' to do if I accept the job?
The newspaper is 'required reading' [=reading that must be done] in my politics course.
(..) - Caesar. - Gracchus. - All Rome rejoices in your return, Caesar. There are many matters that require your attention. - To order! To order! For your guidance, Caesar, the Senate has prepared a series of protocols... to begin addressing the many problems in the city. (..)2000 Gladiator