(a) This subchapter shall apply on June 19, 2004 to: (1) Department of Health; (2) Department of Human Services; (3) Department of Employment Services; (4) Metropolitan Police Department; (5) District of Columbia Public School System; (6) Office of Planning; (7) Fire and Emergency Medical Services; and (8) Office of Human Rights. (b) This subchapter shall apply as of October 1, 2004 to: (1) Department of Housing and Community Development; (2) Department of Mental Health; (3) Department of Motor Vehicles; (4) Child and Family Services Agency; (5) Alcoholic Beverage Regulation Administration; and (6) Department of Consumer and Regulatory Affairs. (c) This subchapter shall apply as of October 1, 2005, to: (1) Department of Parks and Recreation; (2) Office on Aging; (3) District of Columbia Public Library; (4) Office of Personnel; (5) Office of Contracting and Procurement; (6) Department of Corrections; (7) Department of Public Works; and (8) Office of Tax and Revenue. (d) This subchapter shall apply as of October 1, 2006 to all covered entities.