D.C. Mun. Regs. tit. 11, r. 11-800
The Commercial-Light Manufacturing (C-M) Districts are intended to provide sites for heavy commercial and light manufacturing activities employing large numbers of people and requiring some heavy machinery under controls that minimize any adverse effect on other nearby, more restrictive districts.
Heavy truck traffic and loading and unloading operations are expected to be characteristic of C-M Districts.
The three (3) C-M Districts provide a varying schedule for both density and height controls. They shall be mapped throughout the District of Columbia, and shall embrace areas used for low density warehousing as well as areas presently improved with both high and medium density buildings in warehousing, light manufacturing, office, and automotive usage.
Except as is explicitly provided in § 801, no new dwelling shall be permitted in a C-M District.
Except as provided in chapters 20 through 25 of this title, in a C-M District, no building or premises shall be used and no building shall be erected or altered that is arranged, intended, or designed to be used except for one (1) or more of the uses listed in §§ 801 through 803.
No use specifically prohibited in an M District shall be permitted in a C-M District.
D.C. Mun. Regs. tit. 11, r. 11-800