Relating to mass balance attribution of renewable biomass feedstocks used to produce renewable chemicals.
ModeratePlan for compliance
Low Cost
Effective:2025-06-20
Enforcing Agencies
Texas Commission on Environmental Quality (TCEQ)
01
Compliance Analysis
Key implementation requirements and action items for compliance with this legislation
Implementation Timeline
Effective Date:June 20, 2025 (Immediate effect triggered by supermajority vote).
Compliance Deadline:Immediate for Feedstock Qualification; however, formal certification compliance is paused pending agency rulemaking. You cannot officially market under this specific statute until TCEQ lists approved certifiers.
Agency Rulemaking: The TCEQ is mandated to adopt rules identifying acceptable third-party certification systems (e.g., ISCC PLUS, RSB) "as soon as practicable." We anticipate a Regulatory Gray Zone between June 2025 and Q1 2026 where the law is active but the verification mechanism is undefined.
Immediate Action Plan
Audit Feedstocks: Immediately review current biomass and waste inputs against the new statutory definition of "Renewable Biomass" to ensure eligibility.
Select a Standard: Do not wait for TCEQ. Align with ISCC PLUS or RSB standards now, as these are the industry defaults TCEQ is likely to adopt.
Update Marketing Protocols: Issue a directive to Marketing/Sales: No "Renewable Chemical" claims are to be made under HB4413 authority until the third-party certification is active and verified.
Segregate Data: Configure ERP systems to track "renewable attributes" as a separate inventory layer from physical volume.
Operational Changes Required
Contracts
Upstream (Feedstock Suppliers): Amend Master Supply Agreements (MSAs) to require warranties that biomass meets the specific definitions in Sec. 361.421(8-a). Specifically, timber sourced from federal land must carry warranties of compliance with the Healthy Forests Restoration Act of 2003.
Downstream (Sales): Update sales contracts to stipulate that "renewable" content is determined via mass balance attribution, not physical segregation. Include clauses disclaiming liability if physical testing (C14 analysis) does not match the attributed renewable content.
Hiring/Training
Audit Engagement: If not already certified, initiate vendor selection for third-party auditors (e.g., SCS Global, Control Union) anticipating TCEQ will adopt major standards like ISCC.
Internal Accounting: Operations teams must be trained on "credit banking" and conversion factor logic. Inventory managers must separate "physical" tracking from "sustainability credit" tracking in ERP systems.
Reporting & Record-Keeping
Chain of Custody (CoC): You must maintain unbroken CoC records from the point of feedstock generation (e.g., the farm or waste facility) to the reactor.
Mass Balance Ledgers: Establish a ledger system that balances renewable inputs against renewable outputs, accounting for conversion losses. These records will be the primary subject of TCEQ verification.
Fees & Costs
Certification Costs: While the state imposes no new significant fees, businesses must budget for annual third-party audit fees (estimated $10k–$50k depending on facility complexity).
Administrative Overhead: Expect increased administrative hours for maintaining the credit ledger and verifying supplier certificates.
Strategic Ambiguities & Considerations
Certification Exclusivity: It is currently unclear if TCEQ will approve a broad range of certification bodies or limit approval to a single standard. A narrow list could create auditor bottlenecks.
Interstate Reciprocity: The statute does not explicitly detail how Texas will treat mass balance credits generated by feedstock entering the supply chain in other states (e.g., Louisiana or Oklahoma) but processed in Texas.
Waste Definitions: The definition of waste from "wastewater treatment facilities" is broad. Rulemaking will determine if this includes all sludge types or only specific organic fractions.
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The bill author has informed the committee that many chemical manufacturers incorporate biobased waste materials, which would otherwise be discarded or landfilled, as alternatives to fossil-based feedstocks to meet customer demands, but manufacturers currently do not receive credit for doing so. C.S.H.B. 4413 seeks to provide for mass balance accounting for biobased feedstocks to track biobased raw materials through production processes and accurately attribute biobased content to end products for the purpose of enabling Texas manufacturers to use existing infrastructure efficiently and scale up production to meet customer demands.
CRIMINAL JUSTICE IMPACT
It is the committee's opinion that this bill does not expressly create a criminal offense, increase the punishment for an existing criminal offense or category of offenses, or change the eligibility of a person for community supervision, parole, or mandatory supervision.
RULEMAKING AUTHORITY
It is the committee's opinion that rulemaking authority is expressly granted to the Texas Commission on Environmental Quality in SECTION 2 of this bill.
ANALYSIS
C.S.H.B. 4413 amends the Health and Safety Code to expand the requirement for the Texas Commission on Environmental Quality (TCEQ) by rule to identify third-party certification systems for mass balance attribution that may be used for purposes of renewable chemicals in provisions relating to waste reduction programs and disposal fees under the Solid Waste Disposal Act. The bill defines "renewable chemical" to mean a monomer, polymer, plastic, formulated product, or chemical substance produced from renewable biomass feedstocks or certified under a third-party certification system for mass balance attribution identified by the TCEQ. The bill defines "renewable biomass" as the following:
·materials, pre-commercial thinnings, or invasive species from National Forest System land and public lands, as that term is defined by specified federal law, that:
oare byproducts of preventive treatments that are removed:
§to reduce hazardous fuels;
§to reduce or contain disease or insect infestation; or
§to restore ecosystem health;
owould not otherwise be used for higher value products; and
oare harvested in accordance with:
§applicable law and land management plans; and
§requirements for old growth stand maintenance, restoration, and management direction and large tree retention under specified provisions of the federal Healthy Forests Restoration Act of 2003; or
·any organic matter that is available on a renewable or recurring basis from nonfederal land or land belonging to an Indian or Indian tribe that is held in trust by the United States or subject to a restriction against alienation imposed by the United States, including:
orenewable plant material, including:
§feed grains and other agricultural commodities;
§plants and trees;
§algae; and
§microorganisms; and
owaste material, including:
§crop residue;
§vegetative waste material, including wood waste and wood residue;
§animal waste and byproducts, including fats, oils, greases, and manure;
§food waste and yard waste;
§plant-derived waste oils;
§municipal solid waste; and
§waste derived from a wastewater treatment facility.
C.S.H.B. 4413 requires the TCEQ, as soon as practicable after the bill's effective date, to adopt rules necessary to implement the changes in law made by the bill.
EFFECTIVE DATE
September 1, 2025.
COMPARISON OF INTRODUCED AND SUBSTITUTE
While C.S.H.B. 4413 may differ from the introduced in minor or nonsubstantive ways, the following summarizes the substantial differences between the introduced and committee substitute versions of the bill.
With respect to the definition of renewable biomass as, in part, any organic matter that is available on a renewable or recurring basis from nonfederal land or land belonging to an Indian or Indian tribe that is held in trust by the United States or subject to a restriction against alienation imposed by the United States, including renewable plant material and waste material, the substitute includes the following which were not included in the introduced:
·as such renewable plant material, microorganisms; and
·as such waste material, plant-derived waste oils, municipal solid waste, and waste derived from a wastewater treatment facility.
HB4413 statutorily authorizes the use of "mass balance attribution" for chemical manufacturers to designate products as "renewable chemicals" without physical segregation of feedstocks. This legislation immediately impacts chemical producers, refiners, and waste-to-energy facilities by validating book-and-claim accounting, provided they utilize a third-party certification system to be identified by the TCEQ. Implementation Timeline Effective Date: June 20, 2025 (Immediate effect triggered by supermajority vote).
Q
Who authored HB4413?
HB4413 was authored by Texas Representative Dennis Paul during the Regular Session.
Q
When was HB4413 signed into law?
HB4413 was signed into law by Governor Greg Abbott on June 20, 2025.
Q
Which agencies enforce HB4413?
HB4413 is enforced by Texas Commission on Environmental Quality (TCEQ).
Q
How urgent is compliance with HB4413?
The compliance urgency for HB4413 is rated as "moderate". Businesses and organizations should review the requirements and timeline to ensure timely compliance.
Q
What is the cost impact of HB4413?
The cost impact of HB4413 is estimated as "low". This may vary based on industry and implementation requirements.
Q
What topics does HB4413 address?
HB4413 addresses topics including agriculture, environment, environment--general, environment--solid waste and environmental quality, texas commission on.
Legislative data provided by LegiScanLast updated: November 25, 2025
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