His employer can, and in most places is required to advise him about on-the-job safety practices particular to his job.
Hi, my brother decided to get a job as a builder but he absolutely does not know the safety rules. I'm trying to find something for him so that he can learn more about it. Any tips?
Oh, don't be careless with any job. Just one mistake or non-compliance can cripple or worse. You should find accident histories and convince him that the most important thing is safety http://systemofyoursafety.com/ here you will find all the information on how to protect yourself and your brother during work. Be careful!