New DS attempting to make me do task I am not comfortable doing for historical safety reasons. Other supervisors siding with them despite evidence that the task has been proven unsafe.

I have been on record saying the task this new DS wants done is unsafe and I have historical evidence in photos and text record.

They are now sounding like if I don't comply and do the task, I will start getting written up.

What recourse do I have here?

Some more maybe relevant context: DS was the former freight team special person. They helped out doing recovery projects a few times when they were on overnights and they have heard the reasoning and seen the evidence themselves.