Federal Register notice announcing issuance of interim guidelines for the preparation of nonbinding preliminary allocations of responsiblity (NBAR) under section 122 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA, commonly referred to as Superfund) and to request public comment. Printed in the Federal Register on 5/28/1987 (52 Fed. Reg. 19919).You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.