D.C. Mun. Regs. tit. 25-C, § 6462
6462.1 The Department shall keep and maintain a record of each inspection made of any public swimming pool or spa facility within the District for a period of three (3) years.
6462.2 The Department shall maintain annual records of the following information:
SOURCE: Final Rulemaking published at 55 DCR 012845 (December 26, 2008).