RECENTLY, THE MINISTRY OF ECOLOGY AND ENVIRONMENT ISSUED A NOTICE ON THE RELEASE OF THREE NATIONAL POLLUTANT EMISSION STANDARDS, INCLUDING THE "LIMITS AND MEASUREMENT METHODS FOR EXHAUST SMOKE OF NON ROAD MOBILE DIESEL MACHINERY" (NO. 51 OF 2018). THE ANNOUNCEMENT POINTS OUT THAT IN ORDER TO IMPLEMENT THE ENVIRONMENTAL PROTECTION LAW OF THE PEOPLE'S REPUBLIC OF CHINA AND THE AIR POLLUTION PREVENTION AND CONTROL LAW OF THE PEOPLE'S REPUBLIC OF CHINA, AND TO PREVENT AND CONTROL THE POLLUTION OF THE ENVIRONMENT CAUSED BY THE EXHAUST OF MOTOR VEHICLES AND NON ROAD MOBILE MACHINERY, THE "SMOKE LIMITS AND MEASUREMENT METHODS FOR NON ROAD MOBILE DIESEL MACHINERY EXHAUST", "EMISSION LIMITS AND MEASUREMENT METHODS FOR GASOLINE VEHICLES (DUAL IDLE METHOD AND SIMPLE WORKING CONDITION METHOD)", AND "EMISSION LIMITS AND MEASUREMENT METHODS FOR DIESEL VEHICLES (FREE ACCELERATION METHOD AND LOADING DECELERATION METHOD)" ARE NOW APPROVED AS NATIONAL ENVIRONMENTAL PROTECTION STANDARDS, AND JOINTLY ISSUED BY THE MINISTRY OF ECOLOGY AND ENVIRONMENT AND THE STATE ADMINISTRATION FOR MARKET REGULATION.AMONG THEM, THE "LIMITS AND MEASUREMENT METHODS FOR EXHAUST SMOKE OF NON ROAD MOBILE DIESEL MACHINERY" (GB 36886-2018) APPLIES TO AGRICULTURAL MACHINERY AND HAS BEEN IMPLEMENTED SINCE DECEMBER 1, 2018. THIS STANDARD SPECIFIES THE EXHAUST SMOKE LIMITS AND MEASUREMENT METHODS FOR NON ROAD DIESEL MOBILE MACHINERY. THIS STANDARD IS APPLICABLE TO THE EXHAUST SMOKE INSPECTION OF NON ROAD DIESEL MOBILE MACHINERY AND VEHICLE MOUNTED DIESEL ENGINE EQUIPMENT IN USE. REFER TO THE EXHAUST SMOKE INSPECTION FOR NEWLY PRODUCED AND IMPORTED NON ROAD DIESEL MOBILE MACHINERY. HTTP://WWW.AMIC.AGRI.CN/NXTWEBFREAMWORK/UPLOAD/20181114092909855.PDF