District of Columbia Code Division IV. Criminal Law and Procedure and Prisoners. § 22-4505.01. Off-duty law enforcement officers carrying restrictions.

(1) A building or office occupied by the government of the District of Columbia, its agencies, or its instrumentalities;

(2) A District government property or park;

(3) Any private residential property other than the officer's own residence, if:

(4) Any private property that does not belong to the law enforcement officer and that is not a residence, including private property open to the public, if:

(5) In a church, synagogue, mosque, or other place where people regularly assemble for religious worship and that is not otherwise covered by paragraph (1) or (2) of this subsection, if:

(1) A law enforcement officer shall be an off-duty law enforcement officer when the officer is not performing an official duty for the governmental agency that authorizes the officer to carry a firearm.

(2) A Metropolitan Police Department officer's authorized service weapon includes the officer's authorized off-duty service weapon.

(1) Law enforcement officers employed by the District, including members of the Metropolitan Police Department; or

(2) An officer, agent, or employee of the United States, a State, or political subdivision thereof, who is authorized by law to engage in or supervise the prevention, detection, investigation, or prosecution of any violation of law and who is engaged in the lawful performance of their official duties, including travel to or from any official activity and participation in an authorized honor guard.