Md. Code, Local Gov't § 20-705

(a) By ordinance, the County Council of Harford County may impose a development impact fee not exceeding $10,000 on new construction or development. (b) (1) The County Treasurer shall deposit the revenues from the development impact fee into a special fund. (2) The revenues from the special fund may be used only for school: (i) site acquisition; (ii) construction; (iii) renovation; (iv) debt reduction; or (v) capital expenses. (c) A municipality in Harford County shall assist the county council in the collection of the development impact fee in the municipality by: (1) collecting and remitting the fee to the county; or (2) requiring the fee to be paid to the county in accordance with the county ordinance. (d) If a development impact fee is enacted under this section, the county shall: (1) prepare an annual report on the revenues generated by the development impact fee and how those revenues were spent; and (2) on or before May 31 of each year, submit the report to the Harford County Delegation to the General Assembly.