Skip to Content
Questions or Comments:

Industrial and Hazardous Waste Permits - Class 1 Modification

Applying for a Class 1 modification to an existing industrial or hazardous waste permit.

Submit an original hard copy NEW  Class 1 Modification Form, plus 1 electronic copy.

Download the Class 1 Modification Form to your computer to fill it in.

If any changes that apply to you are marked with a superscript 1 in 30 TAC 305.69(k)T (i.e., Class 11) , you may need a Class 1ED modification instead.

If the payment is not paid through TCEQ E PAY service, then you must send a letter transmitting the check for the Class 1 modification fee to the TCEQ Financial Administration Division at the address below. Be sure to refer to the Facility's Solid Waste Registration Number in the transmittal letter.

Financial Administration Division (MC-214)
PO Box 13088
Austin, TX 78711-3088

  • Within 90 calendar days after the change is put into effect, you must send notice of the modification request by first-class mail to all persons listed in 30 TAC §39.413 . The Notice text must include the information required by 30 TAC §39.411 and 30 TAC §39.1005 .
  • If we reject your application for a Class 1 modification, then you must comply with the conditions of your original permit.


Contact us if you have any questions.