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.
(..) You know your own degrees. Sit down. At first and last, the hearty welcome. Our hostess keeps her state but in best time we will require her welcome. Pronounce it for me, sir, to all our friends, for my heart speaks they are welcome. Your Majesty. Be large in mirth, anon, (..)2015 Macbeth
(..) where to plant yourselves, acquaint you with the perfect spy o' the time the moment on't, for it must be done tonight, and something from the palace. Always thought that I require a clearness. And with him, to leave no rubs nor botches in the work, Fleance, his son that keeps him company, (..)2015 Macbeth