In fiscal year 2004 and thereafter, unless otherwise provided, funds may be used for purchase of uniforms without regard to the general purchase price limitation for the current fiscal year; purchase of insurance for official motor vehicles operated in foreign countries; entering into contracts with the Department of State to furnish health and medical services to employees and their dependents serving in foreign countries; services authorized by section 3109 of title 5; and the hire and purchase of motor vehicles, as authorized by section 1343 of title 31: Provided, That purchase for police-type use of passenger vehicles may be made without regard to the general purchase price limitation for the current fiscal year.