N.M. Const. art. IV, § 20

[Enrollment, engrossment and signing of bills.] Immediately after the passage of any bill or resolution, it shall be enrolled and engrossed, and read publicly in full in each house, and thereupon shall be signed by the presiding officers of each house in open session, and the fact of such reading and signing shall be entered on the journal. No interlineation or erasure in a signed bill, shall be effective, unless certified thereon in express terms by the presiding officer of each house quoting the words interlined or erased, nor unless the fact of the making of such interlineation or erasure be publicly announced in each house and entered on the journal.