DC handgun regulations look likely to be most restrictive concealed carry law in country

“(a) No person holding a license issued pursuant to section 6 shall carry a pistol in the following locations or under the following circumstances:

“(1) Any building owned or under the control of the District of Columbia, its agencies, and instrumentalities;

“(2) The building and grounds, including any adjacent parking lot, of any public, public charter, or private elementary or secondary school; or any public or private college or university;

“(3) Any pre-school or child care facility;

“(4) Any public or private hospital, or other building where medical or mental health services are the primary services provided;

“(5) Any adult or juvenile correctional facility, including halfway houses;

“(6) Any public transportation vehicle, including the Metrorail transit system, but not including taxicab operators;

“(7) Any premises or portion thereof, licensed under Title 25 of the District of Columbia Official Code, where alcoholic beverages are served, or are sold and consumed on premises;

“(8) Any public gathering or special event conducted on property open to the public that requires the issuance of a permit from the District or federal government or their agencies or instrumentalities, provided that no criminal penalty shall apply unless:

“(A) The licensee has been advised by a law enforcement officer that such a public gathering or special event is occurring; and

“(B) The licensee has been ordered by the law enforcement officer to leave the area of the special event or gathering until the licensee removes the pistol from his or her possession in compliance with applicable law and the licensee has not complied with the order;

“(9) Any stadium or arena;

“(10) Any area where firearms are prohibited under federal law or by a federal agency or entity;

“(11) The area around the White House, namely: between Constitution Avenue and H Street and between 15th and 17th Streets, all Northwest;

“(12) Within 1,000 feet, or other lesser distance designated by the Chief or his or her designee, when a dignitary or high ranking official of the United States or a state, local, or foreign government is under the protection of the Metropolitan Police Department, or other law enforcement agency assisting or working in concert with it, provided that no criminal penalty shall apply unless:

“(A) The licensee has been advised by a law enforcement officer that such a dignitary or official movement is occurring; and

“(B) The licensee has been ordered by the law enforcement officer to leave the area of the movement until the licensee removes the pistol from his or her possession in compliance with applicable law and the licensee has not complied with the order;

“(13) Within 1,000 feet, or other lesser distance designated by the Chief or his or her designee, of a demonstration in a public place, provided that no criminal penalty shall apply unless:

“(A) The licensee has been advised by a law enforcement officer that a demonstration is occurring at the public place; and

“(B) The licensee has been ordered by the law enforcement officer to leave the area of the demonstration until the licensee removes the pistol from his or her

possession in compliance with applicable law and the licensee has not complied with the order; and

“(14) Any prohibited circumstance that the Chief determines by rule, provided that for spontaneous circumstances, no criminal penalty shall apply unless the licensee has notice of the prohibition and has failed to comply.

“(b)(1) Any private residence shall be presumed to prohibit the presence of firearms unless otherwise authorized by the property owner or person in control of the premises and communicated personally to the licensee in advance of entry onto the residential property.

(2) For 90 days immediately following the effective date of the License to Carry a Pistol Emergency Amendment Act of 2014, all private commercial property owners shall be presumed to prohibit the presence of firearms unless the owner or authorized agent authorizes entry by a licensee carrying a pistol; thereafter, all private commercial property owners shall be presumed to permit a licensee to enter the owner’s property unless the property is posted with conspicuous signage prohibiting firearms, or the owner or authorized agent communicates such prohibition personally to the licensee.