Final rule · 2026-21963

Voluntary Consensus Standards Update; Formaldehyde Emission Standards for Composite Wood Products

The Environmental Protection Agency (EPA) is publishing a final rule to update the incorporation by reference of several voluntary consensus standards in the Agency's formaldehyde standards for composite wood products regulations under the Toxic Substances Control Act (TSCA) due to the standards having been updated or superseded by the issuing organizations. These new standards primarily update test methods and product standards concerning composite wood products that use formaldehyde. EPA is also conforming these updated standards in the scope and definitional sections in the final rule and incorporating by reference a new small scale quality control chamber test method, similar to current methods already incorporated by reference. EPA is also removing one standard that was previously incorporated by reference to avoid redundancy, given that another identical, internationally recognized version of the standard is already incorporated by reference in this rule.