Regulatory vs. non-regulatory simply describes the different legal footing behind their establishment. For pilot use, both variants of the word are superfluous.
The strongly protected ones need a formal ruling, which is provided through means in the Code of Federal Regulations = regulatory airspace. I.e. you cannot have a Restricted SUA which is non-regulatory.
Regulatory ones are "established by law, lawfully established, enforcable and punishable according to the law". Layman's terms (pilot, not a legal professional).
Last edited by FlightDetent; 12th November 2021 at 03:55.