Aerosol cans, whether empty or not, should be disposed of by the EHS office. Fill out the Chemical Pick-Up Request form. This form will ask who you are, what room and building the materials are in, what materials you need to dispose of, and how many of each. If you have any special instructions like where the materials are located within the room, or if you have special instructions on when the pick-up should occur, you can enter this information in the comments section. The form will be submitted electronically to several members of EHS and someone will come and pick up the materials - usually within hours, but within up to three working days.