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.
(..) Tailor. Here comes Soldier. 'Full house.' - Well, go on then. Read it out loud. - "Personal for Tarr from Alleline. "Require clarification before meeting your request. "Quote, information vital to safeguarding of the Circus, unquote "does not qualify, send further information. " (..)2011 Tinker Tailor Soldier Spy
(..) You can rent one but you can't buy one. Right, Bill? How's Ricki Tarr these days? Fine. We have tea at Fortnum's every afternoon. I require the matter of your discussion with Tarr. I'll tell him. He'll be thrilled. What's that shrug for? I'm talking to you about the traitor who cut the throat (..)2011 Tinker Tailor Soldier Spy