D.C. Mun. Regs. tit. 25, r. 25-C610
All outdoor public swimming pools and spa pools shall be surrounded by a minimum seventy-two inch (72 in.) high fence or other substantial barrier approved by the Department.
The fence shall be continuous around the perimeter of the pool area that is not otherwise blocked or obstructed by adjacent buildings or structures and shall adjoin with itself or abut to the adjacent members.
All aquatic venues shall be through self-closing, self- latching lockable gates in which the self- latching mechanisms shall be located not less than four and a half feet (41/2 ft.) (1.4 m) above finished grade.
Door access points from public rooms such as lobbies or club houses need not be through gates.
Gates shall open outward away from the pool area.
A latched, lockable gate shall be placed in the fence within ten feet (10 ft.) of the equipment area for service access.
Screened pool enclosures shall be hardened on the bottom three feet (3 ft.)
Fencing consideration shall be given to the U.S. Consumer Product Safety Commission (CPSC) Publication No. 362 Guidelines.
Safety Covers shall meet strict performance standards as set by the American Society for Testing and Materials in ASTM Standard F1346-91, Standard Performance Specification for Safety Covers and Labeling Requirements for All Covers for Swimming Pools, Spas and Hot Tubs.
All public and semi-public pools shall be installed or secured with pool safety covers as specified in Subsection 505.5, during the following occurrence:
All standing water shall be substantially drained from the cover with a pump within thirty (30) minutes after cessation of normal rainfall.
D.C. Mun. Regs. tit. 25, r. 25-C610