The Environmental Protection Agency (EPA) is pursuing a regulatory change to update the available options for extraction methods for polychlorinated biphenyls (PCBs). The agency is considering proposing and requesting public comment on the extraction efficiency of other currently available PCB extraction methods in solid matrices (e.g., Automated Soxhlet Extraction (EPA Method 3541), Microwave Extraction (EPA Method 3546), Pressurized Fluid Extraction (EPA Method 3545A)), to inform the agency's decision-making on the inclusion of additional extraction methods in the PCB regulations. The EPA is also considering updating the available determinative methods, removing the option to dispose of certain PCB bulk product waste in roadbed, and adding regulatory flexibility for the management of PCB waste in emergency situations. In addition, the agency is considering proposing supplemental amendments for inclusion that may improve the implementation of the regulations, clarify ambiguity, and correct technical errors. The supplemental amendments for inclusion in the rule are expected to be minor, technical in nature, and not intended to change or create new policy.