（From wikipedia, the free encyclopedia)
In the United States. vehicle safety inspection and emissions inspection are governed by each state
individually. 17 states have a periodic (annual or biennial） safety inspection progrom, while Maryland and Alabama require a safety inspection on sale or transfer of vehicles which were prevously registered in
another state. New Jersey discontinued its passenger vehicIe safety inspection program on August 1,2010.
In1977, the federal Clean Air Act was amended by Congress to requre states to implement vehicle emissions inspection programs, known as I/M progroms (for Inspection and Maintenance), in all major metopolitan areas whose air quality failed to meet certain federal standards. New York’s program started in 1982, California’s program (“Smog Check”) started in 1984, and Illinois’ program started in 1986. Some states, including Kentucky and Minnesota, have discontinued their testing programs in recent years with approval from the federal government.
biennial: [baɪˈeniəl]adj. 两年一次的; n.两年生植物(第二年开花);
Alabama: [ˌæləˈbæmə]阿拉巴马州。
New Jersey: [njuː ˈdʒɜːzi]新泽西州。
Maryland:
Illinois: [ˌɪləˈnɔɪ]伊利诺伊州
Kentucky: [kɪnˈtʌki]肯塔基州
Minnesota: [ˌmɪnɪˈsəʊtə]明尼苏达州
Georgia: [ˈdʒɔːdʒə]佐治亚州(Georgia，简称GA)，又译乔治亚州
Tennessee: [ˌtɛnəˈsi]田纳西
Pennsylvania: [pensɪl’veɪnjə]宾西法尼亚