you could also use "policy" for "Regolamento" and "implementation" for "attuazione" depending on the exact context.

An "enabling regulation/statute/clause" gives governmental officials the power and authority to put the law into effect and to enforce it. It is also known as an "enacting clause". (Source: Black's Law Dicitonary) In law, a statute or clause that "implements" and "enforces" law is known as "enabling" or "enacting". It is never a policy.

A suggestion.