La. R.S. 47:1513

The collector or his authorized representatives may take the oath of any person signing any application, deposition, statement or report required by the provisions of this Sub-title, or administer such other oaths as may be necessary for the purpose of enforcing and administering the provisions of this Sub-title; provided however, that any form, affidavit or oath required by the Department of Revenue in connection with the issuance of a motor vehicle license plate may be signed before any revenue deputy or notary public, at the option of the person applying for said license plate.