The Texas Commission on Environmental Quality (formerly Texas Natural Resource Conservation Commission) requires records to be kept of any waste treated on-site including date of treatment, amount of waste, method of treatment, and name and initials of person performing treatment. For labs that generate more than 50 pounds of waste per calendar month, TCEQ requires a written procedure for the operation and testing of any equipment or chemicals used. Records must be maintained for 3 years and must be available for review at any time by TCEQ inspectors. Environmental Health & Safety will be implementing an autoclave testing program to assist in the validation process. If you have any questions, please contact us at x4111.