In this subtitle, the following terms have the meanings indicated. “Agency” has the meaning stated in § 4-101(b) of the City General Provisions Article. “Immigration enforcement action” means any and all efforts conducted by an immigration official for the purpose of locating, apprehending, detaining, or removing an individual who the immigration official believes is violating federal immigration law. “Immigration enforcement action response plan” or “plan” means a set of policies and procedures adopted by an agency to guide the agency’s preparation for and response to an interaction with an immigration official. “Immigration official” means any employee of the United States Department of Homeland Security, any employee of United States Immigration and Customs Enforcement, or any federal official who engages in an immigration enforcement action.