105 STAT. 964 PUBLIC LAW 102-143—OCT. 28, 1991 (7) provide for the confidentiality of test results and medical information (other than information relating to alcohol or a controlled substance) of employees, except that the provisions of this paragraph shall not preclude the use of test results for the orderly imposition of appropriate sanctions under this section; and (8) ensure that employees are selected for tests by nondiscriminatory and impartial methods, so that no employee is harassed by being treated differently from other employees in similar circumstances. (e)(1) No State or local government shall adopt or have in effect any law, rule, regulation, ordinance, standard, or order that is inconsistent with the regulations issued under this section, except that the regulations issued under this section shall not be construed to preempt provisions of State criminal law which impose sanctions for reckless conduct leading to actual loss of life, injury, or damage to property, whether the provisions apply specifically to mass transportation employees, or to the general public. (2) Nothing in this section shall be construed to restrict the discretion of the Secretary to continue in force, amend, or further supplement any regulations governing the use of alcohol or controlled substances by mass transportation employees issued before the date of enactment of this Act. (3) In issuing regulations under this section, the Secretary shall only establish requirements that are consistent with the international obligations of the United States, and the Secretary shall take into consideration any applicable laws and regulations of foreign countries. (f)(1) As the Secretary considers appropriate, the Secretary shall require— (A) disqualification for an established period of time or dismissal of any employee referred to in subsection (b)(1) who is determined to have used or to have been impaired by alcohol while on duty; and (B) disqualification for an established period of time or dismissal of any such employee determined to have used a controlled substance, whether on duty or not on duty, except as permitted for medical purposes by law or any regulations. (2) Nothing in this section shall be construed to supersede any penalty applicable to a mass transportation employee under any other provision of law. (g) A person shall not be eligible for Federal financial assistance under section 3, 9, or 18 of the Urban Mass Transportation Act of 1964 (49 App. U.S.C. 1602, 1607a, or 1614) or section 103(e)(4) of title 23, United States Code, if such person—
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