In 2021, EPA proposed to codify the definition of "parent company" for purposes of reporting to the Toxics Release Inventory (TRI). Although the existing regulation requires facilities reporting to TRI to identify their parent company in annual reporting forms, no codified definition of this data element exists. Among the facilities reporting to TRI are those with complicated corporate ownership structures. As such, effort is required each year by reporting facilities and EPA to clarify how the parent company data element should be represented on the form. A codified definition of parent company would allow EPA to address various corporate ownership scenarios explicitly and reduce the reporting burden caused by regulatory uncertainty. This proposed rule would clarify existing regulations to reporting facilities and add a foreign parent company data element, if applicable, while improving the Agency's data quality. EPA is reviewing the comments received and is determining next steps.