108 STAT. 2416 PUBLIC LAW 103-329—SEPT. 30, 1994 designed to ensure that all of its workplaces are free from the illegal use, possession, or distribution of controlled substances (as defined in the Controlled Substances Act) by the officers and employees of such department, agency, or instrumentality. SEC. 603. Notwithstanding 31 U.S.C. 1345, any agency, department or instrumentality of the United States which provides or proposes to provide child care services for Federal employees may reimburse any Federal employee or any person employed to provide such services for travel, transportation, and subsistence expenses incurred for training classes, conferences or other meetings in connection with the provision of such services: Provided, That any per diem allowance made pursuant to this section shall not exceed the rate specified in regulations prescribed pursuant to section 5707 of title 5, United States Code. 31 USC 1343 SEC. 604. Unless otherwise specifically provided, the maximum "°*®" amount allowable during the current fiscal year in accordance with section 16 of the Act of August 2, 1946 (60 Stat. 810), for the {)urchase of any passenger motor vehicle (exclusive of buses, ambuances, law enforcement, and undercover surveillance vehicles), is hereby fixed at $8,100 except station wagons for which the maximum shall be $9,100: Provided, That these limits may be exceeded by not to exceed $3,700 for police-type vehicles, and by not to exceed $4,000 for special heavy-duty vehicles: Provided further. That the limits set forth in tnis section may not be exceeded by more than five percent for electric or hybrid vehicles purchased for demonstration under the provisions of the Electric and Hybrid Vehicle Research, Development, and Demonstration Act of 1976: Provided further. That the limits set forth in this section may be exceeded by the incremental cost of clean alternative fuels vehicles acquired pursuant to Public Law 101-549 over the cost of comparable conventionally fueled vehicles. SEC. 605. Appropriations of the executive departments and independent establishments for the current fiscal year available for expenses of travel or for the expenses of the activity concerned, are hereby made available for quarters allowances and cost-of- living allowances, in accordance with 5 U.S.C. 5922-24. 5 USC 3101 note. SEC. 606. Unless otherwise specified during the current fiscal year no part of any appropriation contained in this or any other Act shall be used to pay the compensation of any officer or employee of the Government of the United States (including any agency the megority of the stock of which is owned by the Government of the United States) whose post of duty is in the continental United States unless such person (1) is a citizen of the United States, (2) is a person in the service of the United States on the date of enactment of this Act who, being eligible for citizenship, has filed a declaration of intention to become a citizen of the United States prior to such date and is actually residing in the United States, (3) is a person who owes allegiance to the United States, (4) is an alien from Cuba, Poland, South Vietnam, the countries of the former Soviet Union, or the Baltic countries lawfully admitted to the United States for permanent residence, or (5) South Vietnamese, Cambodian, and Laotian refugees paroled in the United States after January 1, 1975, or (6) nationals of the People's Republic of China that qualify for adjustment of status pursuant to the Chinese Student Protection Act of 1992: Provided, That for the purpose of this section, an affidavit signed by any such person shall be considered prima facie evidence that the requirements
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