D.C. Mun. Regs. tit. 11, § 901
The following uses shall be permitted in the W-1, W-2, and W-3 Districts as a matter of right:
(n) Library (other than public library);
(o) Museum;
(p) Office;
(q) One-Family dwelling, flat, or multiple dwelling;
(r) Park or open space;
(s) Private club, restaurant, fast food establishment, prepared food shop, or food delivery service, provided that a fast food establishment, or food delivery service shall not include a drive-through;
(t) Private or public theater;
(u) Police Department General Facility, except as provided in § 917;
(v) Police Department Local Facility;
(w) Public library;
(x) Public recreation and community center;
(y) Public School, subject to the provisions of chapter 21 of this title;
(z) Recreational building or use;
(aa) Retail sales or services not specified in §§ 902 and 906 through 915;
(bb) Rooming or boarding house;
(cc) Swimming pool;
(dd) Youth residential care home, community residence facility, or health care facility for seven (7) to fifteen (15) persons, not including resident supervisors or staff and their families; provided, that there shall be no property containing an existing community-based residential facility for seven (7) or more persons either in the same square or within a radius of five hundred feet (500 ft.) from any portion of the subject property; and
(ee) Notwithstanding § 352.3, temporary surface parking lot accessory
to the Ballpark shall be permitted on Squares 664E, 707, 708, 708E, 708S, or 744S, in accordance with § 2110. In the event that the cumulative parking limit established in § 2110.1 (a) is met, additional temporary surface parking spaces accessory to the Ballpark on Squares 664E, 707, 708, 708E, 708S, or 744S shall be permitted as a special exception in a W-2 District if approved by the Board of Zoning Adjustment pursuant to § 2110.2.
901.2 Accessory use (including parking), building, or structure customarily incidental and subordinate to the principal uses permitted in § 901.1 shall be permitted in the W-1, W-2, and W-3 Districts as a matter of right, except that a firearms retail sales establishment shall not be permitted as a principal or an accessory use.
901.3 Mechanical amusement machines shall be permitted in the W-1, W-2, and W-3 Districts as a matter of right, as accessory to the following uses:
(a) Boat club or marina;
(b) Fire Department Administrative Facility;
(c) Fire Station;
(d) Hotel or inn;
(e) Private school, trade school, college, or university; but only to a college or university subject to § 2501;
(f) Restaurant or private club; and
(g) Retail sales or services not specified in §§ 902, 906 through 911, and 913 through 915.
901.4 A child development home and an elderly day care home shall be permitted in the W-1, W-2, and W-3 Districts as a matter of right, as an accessory use; provided, that the dwelling unit in which the use is located shall be the principal residence of the caregiver and that the use shall otherwise meet the definition of a home occupation.
901.5 Within the W-0 District, the following uses shall be permitted as a matter
of right:
(a) Boat construction on an occasional basis by a local community organization;
(b) Community garden operated by a local community organization or District government agency;
(c) Publicly accessible park or open space, playground, or athletic field, including pedestrian and bicycle trails, necessary support facilities, and fitness circuits;
(d) Public nature education or interpretive center including a boat dock; and
(e) Seasonal or occasional market for produce, arts, and crafts, with non-permanent structures.
901.6
A Driver's License Road Test Facility shall be permitted within the W-2 and W-3 Districts.
SOURCE: § 4402.2 of the Zoning Regulations, effective May 12, 1958; as amended by: Final Rulemaking published at 27 DCR 2066, 2070 (May 16, 1980); Final Rulemaking published at 28 DCR 3482, 3499 (August 7, 1981); Final Rulemaking published at 29 DCR 4913, 4914 (November 5, 1982); Final Rulemaking published at 32 DCR 4374, 4375 (July 26, 1985); Final Rulemaking published at 36 DCR 1509, 1520 (February 24, 1989); Final Rulemaking published at 40 DCR 726 (January 22, 1993); Final Rulemaking published at 40 DCR 3744, 3747 (June 11, 1993); Final Rulemaking published at 46 DCR 8284, 8288 (October 15, 1999); Final Rulemaking published at 47 DCR 9725, 9734-35 (December 8, 2000); Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8429-30 (October 20, 2000); Final Rulemaking published at 49 DCR 2742, 2747 (March 22, 2002); as amended by Final Rulemaking published at 50 DCR 10137 (November 28, 2003); as amended by Final Rulemaking published at 50 DCR 10822 (December 19, 2003); as amended by Final Rulemaking published at 51 DCR 3440 (April 2, 2004); as amended by Final Rulemaking published at 51 DCR 4778 (May 7, 2004); as amended by Final Rulemaking published at 52 DCR 6358 (July 8, 2005); as amended by Final Rulemaking published at 52 DCR 7259 (August 5, 2005); as amended by Final Rulemaking published at 52 DCR 9155 (October 14, 2005); as amended by Final Rulemaking published at 53 DCR 9580 (December 1, 2006); as amended by Final Rulemaking published at 53 DCR 10085 (December 22, 2006); as amended by Final Rulemaking published at 54 DCR 8981 (September 14, 2007); as amended by Final Rulemaking published at 54 DCR 9393 (September 28, 2007); as amended by Final Rulemaking published at 55 DCR 34 (January 4, 2008); as amended by Final Rulemaking published at 55 DCR 2623 (March 14, 2008); as amended by Final Rulemaking published at 55 DCR 7308 (July 4, 2008); as amended by Final Rulemaking and Order No. 08-20 published at 56 DCR 2181 (March 13, 2009); as amended by Notice of Final Rulemaking published at 59 DCR 4236, 4238 (May 4, 2012).