Opposition to parts of Rule R714-160 have included issues with High Intensity Discharge (HID) headlights, window tinting, mud flaps and fender flares, mobile safety inspection stations, windshields etc. When comments, complaints, or requests regarding these issues are received, the Safety Inspection Office responds by investigating the issue or addressing the request. The Safety Inspection Office receives complaints and investigates issues related to concerns from inspectors and consumers. The agency also received a comment that expressed concern that "CNG Safety Inspections for retrofit CNG vehicles" were not being done and another comment that CNG vehicles were passing safety inspection with expired tanks. The agency received another comment regarding a vehicle that had been significantly modified. Because of the modifications, it would not pass safety inspection. The owner indicated the vehicle was safe. A comment was received indicating that replacing the airbags in order to pass safety inspection would be financially burdensome. Comments have been received regarding allowing different colored lights on vehicles (including emergency lights) that are not approved colors such as red, white, yellow, or amber. A comment regarding allowing studded snow tires during warmer months was received. A comment about a vehicle being rejected for windshield wipers leaving streaks was received. Comments were received that plate brake testing machines were letting unsafe vehicles on the road. The agency has received at least one comment about what a low-speed vehicle (LSV) is.