根据GB17691-2005的要求,从2010年1月1日起,正式实施国IV排放标准。此标准适用于除重型汽油车之外的所有重型汽车。但是时至2010年1月25日,记者没有搜查到关于国IV标准实施的丝毫消息。政府方面三缄其口,企业和用户方面也不敢妄自猜测,到底国IV为何晚点,还会不会执行,都是汽车产业和物流行业急切需要思考的问题 According to GB17691-2005 requirements, from January 1, 2010 onwards, the official implementation of national IV emission standards. This standard applies to all heavy vehicles except heavy-duty gasoline vehicles. However, as of January 25, 2010, the reporter did not search the slightest news about the implementation of the IV standard. The government is tight-lipped, businesses and users are not afraid to guess, in the end why the country IV delayed, will not be implemented, are the automotive industry and the logistics industry urgently need to think about the issue