Hazardous Waste Management System; Tentative Denial of Petition To Revise the RCRA Corrosivity Hazardous Characteristic

The Environmental Protection Agency (EPA or the Agency) is extending the comment period on the tentative denial of a petition to revise the Resource Conservation and Recovery Act (RCRA) corrosivity hazardous waste characteristic regulation, published in the Federal Register on April 11, 2016. EPA is tentatively denying the rulemaking petition because the materials submitted in support of the petition fail to demonstrate that the requested regulatory revisions are warranted, as further explained in the tentative denial. The Agency's review of additional materials it identified as relevant to the petition similarly did not demonstrate that any change to the corrosivity characteristic regulation is warranted at this time. The comment period is being extended to December 7, 2016.