Q151. Must every container or vehicle be weighed coming in and going out of the landfill?

A151. Two options are acceptable for using scales: 1) directly weigh each container/vehicle as it enters the landfill and each container/vehicle after the waste has been offloaded, and calculate the mass of waste disposed as the difference in the two measures; or 2) determine a tare weight for representative vehicles types, weigh the incoming containers/vehicles and calculate the mass of waste disposed based on the difference of the incoming vehicle weight and the tare weight of that vehicle type.