Who do I report to in CA regarding morning crew not taking their 10 min breaks.

I am not part of the morning crew but my manager is low-key lazy. When confronted, he responded " I'm not the one to be sending you to breaks"

But when the morning rush comes it's hard to step out for a 10 especially when he won't fill in. So some coworkers don't take breaks. It's been happening for a while now.