Mississippi

Mississippi allows open carry without a permit for anyone 18+ who can legally possess a firearm, holstered/sheathed/in a bag, under the state's constitutional-carry framework (Miss. Code Ann. §45-9-101 and related sections, reinforced by a 2015-2016 legislative/AG clarification). Some locations (schools, bars) remain off-limits.

Miss. Code Ann. §45-9-101(13): a standard concealed-carry license does NOT authorize carry into a church or other place of worship. However, holders of Mississippi's Enhanced Carry License (extra firearms-safety training) ARE permitted to carry in places of worship. Separately, 2016 H.B. 786 lets a church itself form a security team of permit holders authorized to carry for the congregation's protection. So the answer depends on which license tier is held and whether the specific church has authorized a security team.

Miss. Code § 97-37-7 makes the prohibited-place carve-out apply only to the portion of an establishment "primarily devoted to dispensing alcoholic beverages" — the general dining room of a restaurant is not covered. Private owners may still exclude carriers under a Mississippi AG opinion.

Mississippi allows statewide permitless carry for qualifying adults (open and concealed), alongside an optional enhanced/regular permit issued by DPS mainly for reciprocity and certain 'gun-free zone' carve-outs. No boat/vessel/waterway restriction was found in Mississippi carry law.

Miss. Code §45-9-101(13) bars a standard concealed-carry permit holder from a courthouse entirely, but an ENHANCED permit holder (extra training) may carry into a courthouse except inside a courtroom during proceedings — a real, state-specific two-tier distinction. Meeting places of a governing body are restricted only as to the meeting room itself (per an AG opinion), not the whole building, and enhanced permit holders may carry there too.

Miss. Code Ann. §§ 45-9-101, 97-37-7 exempt holders of Mississippi's voluntary ENHANCED carry permit from the general campus firearm ban; standard-permit-only holders remain barred. Many campuses still restrict specific venues (dorms, event centers) via policy, and private schools may exclude entirely as private property.

Miss. Code Ann. § 45-9-101(13) lets an owner post notice prohibiting carry; absent that posted notice, carry in an ordinary business is presumptively lawful.

No MS statute requires advance owner consent; general trespass law (Miss. Code 97-17-93) requires notice before presence becomes unlawful (opt-out default). Constitutional-carry state.

Mississippi Code Ann. § 45-9-101(13) (read via a Findlaw mirror of the official code) prohibits a concealed-pistol-permit holder from carrying 'inside the passenger terminal of any airport,' with a narrow exception for a firearm encased for shipment as checked baggage — the whole public terminal, not just the post-security area, mirroring Florida's and Arkansas's statutes.

Mississippi has had permitless carry since 2016; no permit is required to carry a firearm in a vehicle. Miss. Code §45-9-55 separately protects the right to keep a firearm locked in a vehicle in employer parking areas.

Mississippi's enumerated prohibited-places list (schools, courthouses, police stations, detention facilities, government meetings, polling places, alcohol establishments, athletic events, parades, airport terminals, 'places of nuisance') does not include hospitals or doctor's offices. A narrow, separately-cited statute (Miss. Code Ann. §41-19-261(c)) restricts only specifically named state regional intellectual-disability/mental-illness centers, and only as to non-licensees.

Mississippi is permitless-carry. Its prohibited-place categories (courthouses, schools/colleges, airports, alcohol establishments, government buildings, houses of worship) do not include rest areas. Sourced via NRA-ILA quoting Mississippi statutes; I could not independently load the primary statute text (repeated 404s), so treat the specific citation as secondary-sourced even though the overall conclusion fits the pattern seen in every other state checked.

No Mississippi statute found imposing a duty to inform law enforcement of concealed carry, proactively or if asked.

Miss. Code Ann. § 45-9-101; the Mississippi Dept. of Public Safety Firearm Permit Unit issues License to Carry permits to both residents and non-residents (Mississippi is permitless-carry for its own residents, but still runs a licensing program open to out-of-state applicants for reciprocity purposes).

Miss. Code §97-37-17(1)(a) bans firearms on educational property, but holders of Mississippi's ENHANCED concealed carry permit (which requires being 21+, a background check, and certified firearms-safety training under §97-37-7(2)) are exempted from the school ban. Mississippi's ordinary/basic permit (and its general permitless-carry regime) does NOT get this school exemption — only the enhanced permit does.

Mississippi's constitutional-carry framework allows a private property owner to post a sign prohibiting carry, but I could not confirm from a live source whether entering past such a sign is itself criminal or whether (as I believe, but could not verify) Mississippi follows the common pattern where only refusing to leave after being asked creates trespass liability under general law. Marked unclear pending confirmation.

Miss. Code Ann. § 45-9-51: counties/municipalities may not adopt ordinances restricting possession, transport, sale, or ownership of firearms. Named exceptions under § 45-9-53 for public parks, public meetings, and political rallies/parades.

Miss. Code § 45-9-101(13) provides that no license to carry a concealed pistol/revolver authorizes carrying into 'any polling place'; the only exception found is for a separate law-enforcement license. Note: Mississippi also recognizes permitless/constitutional carry generally, but for someone specifically relying on a concealed-carry LICENSE (this question's population), the statute is unambiguous.

No state-level magazine capacity restriction found.

No extreme risk protection order or red flag statute found in Mississippi.

No Mississippi restriction beyond the federal NFA process for any of the four categories. Miss. Code §97-37-31 makes suppressor possession a misdemeanor UNLESS duly authorized under federal law. No separate Mississippi statute banning SBR/SBS or machine gun possession was found. Mississippi also has a novel 'Made in Mississippi' suppressor law (Miss. Code §45-9-81, 2023) claiming state-made suppressors are exempt from federal regulation under an interstate-commerce theory; similar laws elsewhere have not held up in federal court, so its practical effect is doubtful and does not change the baseline answer.

Stand Your Ground by statute: Miss. Code Ann. § 97-3-15(4) — no duty to retreat.

No Mississippi statute requires background checks on private firearm transfers. Confirmed via absence from Giffords' UBC list.