公安部、市场监

原标题：公安部、市场监管总局、生态环境部、交通运输部联合推出深化车检改革优化车检服务新举措
机动车检验是保障道路交通安全、推进大气污染防治的重要工作，直接关系到人民群众切身利益。

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