|(a) All industrial solid and municipal hazardous waste generated,
stored, processed, transported, or disposed of in the state shall be classified
according to the provisions of this subchapter.
(1) All solid waste shall be classified at the point of generation
of the waste. A generator may not dilute a waste to avoid a Class 1 classification;
however, combining waste streams for subsequent legitimate processing, storage,
or disposal does not constitute dilution and is acceptable. Wastes shall be
classified prior to, and following any type of processing or mixing of the
(2) All industrial solid and municipal hazardous waste shall
be classified as either:
(B) Class 1;
(C) Class 2; or
(D) Class 3.
(3) A person who generates a solid waste shall first determine
if that waste is hazardous pursuant to §335.504 of this title (relating
to Hazardous Waste Determination).
(4) After making the hazardous waste determination as required
in paragraph (3) of this subsection, if the waste is determined to be nonhazardous,
the generator shall then classify the waste as Class 1, Class 2, or Class
3, pursuant to §§335.505 - 335.507 of this title (relating to Class
1 Waste Determination, Class 2 Waste Determination, and Class 3 Waste Determination)
using one or more of the following methods:
(A) use the criteria for waste classification as provided in §§335.505
- 335.507 of this title;
(B) use process knowledge as provided in §335.511 of this
title (relating to Use of Process Knowledge);
(C) classify the waste as directed under §335.508 of this
title (relating to Classification of Specific Industrial Wastes); or
(D) choose to classify a nonhazardous waste as Class 1 without
any analysis to support that classification. However, documentation (analytical
data and/or process knowledge) is necessary to classify a waste as Class 2
or Class 3, pursuant to §335.513 of this title (relating to Documentation
(b) All industrial solid waste and municipal hazardous waste
generated, stored, processed, transported or disposed of in the state shall
be coded with an eight-digit waste code number which shall include a four-digit
waste sequence number, a three-digit form code, and a one-character classification
(either H, 1, 2, or 3). Form codes are provided in §335.521(c) of this
title (relating to Appendix 3). Procedures for assigning waste code numbers
and sequence numbers are outlined as follows and available from the agency
at the address listed in §335.521(b) of this title (relating to Appendix
(1) A waste code is represented by the following 8-digit character
string: sequence number + form code + classification code (H, 1, 2, or 3).
(2) In-state generators will assign a unique four-digit sequence
number to each individual waste. These sequence numbers will range from 0001
to 9999. They need not be assigned in sequential order. An in-state registered
generator may choose to request the executive director assign a sequence number
to a specific waste which is not regularly generated by a facility and is
being shipped as a one-time shipment or choose to add that waste to the regular
sequence numbers on a notice of registration. Sequence numbers provided by
the executive director may be a combination of alpha and numeric characters.
(3) The executive director will provide in-state unregistered
generators a four-digit sequence number for each regulated waste it generates,
which may be a combination of alpha and numeric characters.
(4) Generators of wastes resulting from a spill may obtain
a sequence number for the spill related wastes from the agency's Emergency
(5) Out-of-state generators will use the sequence code "OUTS"
in the first four digits of the waste code.
(6) CESQGs or industrial Class 1 non-hazardous waste generators
that are exempt from manifesting as specified in §335.10 of this title
(relating to Shipping and Reporting Procedures Applicable to Generators of
Hazardous Waste or Class 1 Waste and Primary Exporters of Hazardous Waste)
who voluntarily manifest their hazardous and or Class 1 nonhazardous waste
may use "CESQ" as the first four digits of the waste code.
(7) A facility which receives and consolidates like waste from
Municipal Conditionally Exempt Small Quantity Generators should use "CESQ"
in the first four positions of the waste code for any manifesting and/or reporting
associated with that waste.
(8) A facility which receives a waste and consolidates that
waste with other like waste, other than its own, (thus not changing the form
code of the waste stream or its composition, hazardous, or Texas waste class),
or stores a waste without treating, processing (as defined in §335.1
of this title (relating to Definitions)), or changing the form or composition
of that waste may ship that waste to a storage, treatment, or disposal facility
using the sequence code "TSDF" in the first four positions of the waste code.
This does not pertain to wastes which are treated or altered or combined with
unlike wastes. This "TSDF" designation is only to be used by facilities that
store and/or accumulate a quantity of wastes from more than one site for subsequent
shipment to a treatment or disposal facility. Manifest documents must note
a final destination designated to receive a consolidated waste. The designated
"final destination" receiving facility noted on the manifest must be a permitted
facility in order to terminate the manifest, unless the waste is nonhazardous
and does not require manifesting in accordance with §335.10(g) of this
title and is going to a facility described in §335.10(g) of this title.
A consolidated waste shipped to a non-permitted facility prior to being shipped
to the final destination must proceed with the original manifests (noted with
any appropriate changes) to the facility designated on the manifest for final
|Source Note: The provisions of this §335.503 adopted to be effective November 27, 1992, 17 TexReg 8010; amended to be effective February 24, 1994, 19 TexReg 1042; amended to be effective April 24, 1995, 20 TexReg 2709; amended to be effective May 30, 1995, 20 TexReg 3722; amended to be effective March 1, 1996, 21 TexReg 1425; amended to be effective November 15, 2001, 26 TexReg 9135