Motor vehicle noise control limits are provided as following:I. The acceleration and stationary noise control limits of 5th phase motor vehicles are shown as attached table 1.II. The acceleration and stationary noise control limits of 6th phase motor vehicles are shown as attached table 2.III. The acceleration running noise control limits of in-use vehicles are shown as attached table 3.Attached table 1—acceleration and stationary noise control limits for 5th phase motor vehicles.pdfAttached table 2—acceleration and stationary noise control limits for 6th phase motor vehicles.pdfAttached table 3—Noise Control Limits for In-use Motor Vehicles.pdf