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.
(..) and a collective 'you'. Because... we don't wanna know why Joe Alien is here, we want to know why they all landed. And purpose requires an understanding of intent. We need to find out: do they make conscious choices? Or is their motivation so instinctive (..)2016 Arrival