This file contains the information about a site's waste management either from onsite generation or received from offsite. The waste management unit (WMU) information includes the site's registration number, the WMU sequence number, and unit type. There may be zero to many WMU records associated to a site and one or multiple waste codes associated to a WMU. For descriptions of the codes on this page, view Appendixes B and C of the Instructions for Notification for Hazardous or Industrial Waste Management at tceq.texas.gov/downloads/permitting/waste-registration/forms/ihw/00002inst.pdf.