As of February 22, 2010, federal law makes possession of firearms in national parks subject to local and state firearms laws.
Visitors are responsible for knowing, understanding, and complying with all applicable state, local, and federal firearms laws before entering Kenilworth Park and Aquatic Gardens. As a starting point, please visit the District of Columbia’s website and the District of Columbia Attorney General's website. See Division I, Title 7, Subtitle J, Chapter 25, and Division IV, Title 22, Subtitle VI, Chapter 45
Federal law continues to prohibit firearms in federal facilities. At Kenilworth Park and Aquatic Gardens, these facilities include the visitor center, offices, greenhouses, hot houses, maintenance facility, and the Discovery Creek Living Classroom. Signs at the public entrances inform visitors that firearms are prohibited inside these facilities.