D.C. Mun. Regs. tit. 11, § 105
105.1 For the purpose of this title, the District of Columbia shall be divided into the following zone districts:
(a) RESIDENCE DISTRICTS, as follows:
(1) R-1 one-family detached dwellings, subdivided as follows:
(A) R-1-A low density; and
(B) R-1-B high density;
(2) R-2 one-family, semi-detached dwellings;
(3) R-3 row dwellings;
(4) R-4 row dwellings, conversions, and apartments; and
(5) R-5 general residence, subdivided as follows:
(A) R-5-A low density;
(B) R-5-B moderate density;
(C) R-5-C medium density;
(D) R-5-D medium-high density; and
(E) R-5-E high density;
(b) SPECIAL PURPOSE DISTRICTS, as follows:
(1) SP limited offices and apartments, subdivided as follows:
(A) SP-1 medium density; and
(B) SP-2 medium-high density;
(c) MIXED USE (COMMERCIAL-RESIDENTIAL) DISTRICTS, as follows:
(1) CR mixed uses (retail, residential, office, and light industry);
(d) COMMERCIAL DISTRICTS, as follows:
(1) C-1 neighborhood shopping;
(2) C-2 community business center, subdivided as follows:
(A) C-2-A medium density;
(B) C-2-B medium-high density; and
(C) C-2-C high density;
(3) C-3 major business and employment center, subdivided as follows:
(A) C-3-A medium bulk;
(B) C-3-B medium bulk; and
(C) C-3-C high bulk;
(4) C-4 central business district; and
(5) C-5 (PAD) Pennsylvania Avenue development;
(e) INDUSTRIAL DISTRICTS, as follows:
(1) C-M commercial-light manufacturing, subdivided as follows:
(A) C-M-1 low bulk;
(B) C-M-2 medium bulk; and
(C) C-M-3 high bulk; and
(2) M general industry;
(f) LANGDON OVERLY (LO) DISTRICT;
(g) WATERFRONT DISTRICTS, as follows:
(1) W mixed uses, subdivided as follows:
(A) W-0 waterfront open space and recreation, low density;
(B) W-1 moderate density;
(C) W-2 medium density; and
(D) W-3 high density;
(h) MIXED USE DIPLOMATIC OVERLAY DISTRICT, as follows:
(1) D low and medium density;
(i) HOTEL-RESIDENTIAL INCENTIVE OVERLAY DISTRICT, as follows:
(1) HR high density;
(j) CAPITOL INTEREST OVERLAY DISTRICT, as follows:
(1) CAP low to medium density;
(k) NEIGHBORHOOD COMMERCIAL OVERLAY DISTRICTS, as follows:
(1) Cleveland Park Neighborhood Commercial (CP) Overlay District;
(2) Woodley Park Neighborhood Commercial (WP) Overlay District;
105.2 The districts shall be as shown, defined, and bounded on the Zoning Map (see § 106).
105.3 Areas of the District designated as 'UR' shall be redevelopment or urban renewal areas as established by plans approved by the Council of the District of Columbia under authority of Congressional legislation. These areas have not been made a part of the zone plan as embodied in the Zoning Regulations and Zoning Map.
SOURCE: § 2101 of the Zoning Regulations, effective May 12, 1958; as amended by: Final Rulemaking published at 14 DCR 20 (July 17, 1967); Final Rulemaking published at 21 DCR 1030 (November 21, 1970); Final Rulemaking published at 21 DCR 1423 (December 30, 1974); Final Rulemaking published at 27 DCR 2226, 2228 (May 23, 1980); Final Rulemaking published at 28 DCR 1336, 1338 (March 27, 1981); Final Rulemaking published at 32 DCR 3022, 3027 (May 31, 1985); Final Rulemaking published at 39 DCR 8305 (November 13, 1992); Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8338-39 (October 20, 2000); and Final Rulemaking published at 49 DCR 10594, 10599-10600 (November 22, 2002); and Final Rulemaking published at 51 DCR 3440 (April 2, 2004); and Final Rulemaking published at 51 DCR 6837 (July 9, 2004); and Final Rulemaking published at 52 DCR 63 (January 7, 2005); and Final Rulemaking published at 52 DCR 6358 (July 8, 2005).