D.C. Mun. Regs. tit. 22-B, § 2711
2711.1 A Level I facility shall have in-house hemodialysis services which shall be available within one hundred and twenty (120) minutes of the request, twenty-four (24) hours per day.
2711.2 A Level II facility may provide in-house hemodialysis services which may be available within one hundred and twenty (120) minutes of the request twenty-four (24) hours per day.
SOURCE: Notice of Final Rulemaking published at 46 DCR 8741 (October 29, 1999).