D.C. Mun. Regs. tit. 24, r. 24-1799
For the purposes of this chapter, the following terms shall have the meanings ascribed:
Commercial property - property that does not receive District government solid waste collection service.
Curb cut - a depression or opening in the curb along the traveled portion of a roadway created to permit the travel of motor vehicles from the roadway to property adjacent to the roadway.
Curb ramp - a ramp cutting through a curb or built up to the curb, generally designed to provide an accessible path to individuals with disabilities, such as a ramp leading from a roadway to a sidewalk.
Residential property - property that receives District government solid waste collection service (residential buildings containing three (3) or fewer dwelling units) as defined in 24 DCMR § 1399.1.
D.C. Mun. Regs. tit. 24, r. 24-1799