At a minimum, each adopted policy shall: Allow local government units to invest in only those types of securities authorized by: State Finance and Procurement Article, §6-222(a), Annotated Code of Maryland; Local Government Article, §17-201 et seq., Annotated Code of Maryland; and; COMAR 25.03.04; Require that investments made by local government units comply with the standards of COMAR 25.03.04; Prohibit the borrowing of money for the sole purpose of investment; and Require that the local government unit’s financial officer not invest public money of the local government unit in a manner inconsistent with its adopted policy. A local government unit may include additional requirements in its adopted policy.