Notwithstanding Sections 21.1 and 21G.3 of the Administrative Code or any other provision of the Municipal Code, the Department of Public Works and the Department of Homelessness and Supportive Housing may enter into and/or amend contracts for services or commodities or grants for professional and other services or commodities relating to Projects Addressing Homelessness without adhering to the requirements of Section 21.1, 21G.3, or any other competitive procurement requirements.