Of the 29 types of waste that you can track in Portfolio Manager, the following 8 do not have a standard weight volume-to-weight conversion factor associated with them, so EPA cannot calculate the weight based on your container size.
- Lamps/Light Bulbs
- Office Supplies
- Regulated Medical Waste
If you don’t have an actual weight for these materials, you will need to create an estimate when disposing them. This document may help you create an estimate: https://www.epa.gov/smm/volume-weight-conversion-factors-solid-waste