In this chapter, the following terms have the meanings indicated. Terms Defined. “Act” means Housing and Community Development Article, Title 4, Subtitle 13, Annotated Code of Maryland, as amended. “Agency” means a local administering agency, including a governmental unit, or other agent of a participating county that is designated to administer the Program. “Annual income” means annual income as defined by the United State Department of Housing and Urban Development (HUD) in 24 CFR §5.609 as amended. “Area median income” means the Statewide or Washington, D.C. metropolitan statistical area median income as established by HUD. “Business day” means Monday through Friday excluding State holidays. “County” means any of the 23 counties of this State and the city of Baltimore. “Department” means the Department of Housing and Community Development. “Effective date” means the effective date of this chapter. “Eligible resident” means a resident of a participating county that meets the requirements set forth in Regulation .04 of this chapter. “EPA” means the United States Environmental Protection Agency. “EPA threshold levels” means the following levels of radium and gross alpha above which the EPA has determined quantities are unsafe for household use and consumption: 5 picocuries per liter (5 pCi/L) for combined radium 226 and 228; and 15 picocuries per liter (15 pCi/L) for gross alpha. “HUD” means the United States Department of Housing and Urban Development. “Participating county” means a county that has agreed to participate in the Program and has executed a memorandum of understanding with the Department in accordance with Regulation .04 of this chapter. “Program” means the Radium Pilot Grant Program. “Secretary” means the Secretary of the Department.