(1) each bill that the Governor approves, immediately after the approval;

(2) each bill that becomes law without the approval of the Governor, on the day the bill becomes law;

(3) each bill that the Governor vetoes; and

(4) each executive order effective under Article II, § 24 of the Maryland Constitution.

(b) (1) Subject to § 2-1248 of this title, the Secretary of State shall assign a chapter number to each bill that becomes law and to each executive order issued pursuant to Article II, § 24 of the Maryland Constitution.

(2) Chapter numbers shall be assigned in the order in which the bills become law.