Amends GS 120-32.1 to explicitly authorize NCGA members to carry a concealed firearm while in or on the State legislative buildings and grounds, defined to include any place at which the NCGA or committee is conducting official business, so long as the member is (1) permitted, (2) acting in the discharge of member duties, and (3) not consuming or have in the member's body alcohol or controlled substances. Adds a new provision to bar the Legislative Services Commission from adopting any rules that prohibit carrying a concealed firearm by persons excepted from the prohibition set out in GS 14-269, including US Armed Forces officers and enlisted personnel, US civil and law enforcement officers, National Guard officers and soldiers, State and local officers, qualified retired law enforcement officers, and off-duty sworn law enforcement officers (GS 14-269 lists more specific qualifications for each excepted person that still apply). Applies to offenses committed on or after the date the act becomes law.