Why the act is restricted in the first place
A certified copy is a statement that a reproduction matches a source document. States that withhold the power from notaries do so because the office that issued a record is better positioned to say whether the version in your hand is current, amended, or revoked. A county recorder knows if a deed was superseded; a notary looking at the paper cannot.
That is why vital records, court records, and recorded instruments are off the table everywhere. The issuing custodian is the only authority who can certify against the actual file.
