That is irrelevant. I am responsible for knowing the regulation and abiding it. Failure to educate myself and then abide the regulation is at my peril.
And yes, I do regularly review the regulation, the Chief Legal Counsel Interpretations, and the Federal Register preambles. That information defines what I am allowed or not allowed to do, every bit as much as OpSpecs, aircraft limitations, employer limitations, etc.
I am obligated to know. As are you.