Memorandum assists the Regions in enforcing information request letters issued pursuant to section 104 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and section 3007 of the Resource Conservation and Recovery Act (RCRA). OSWER Directive No. 9834.4. Issued 9/10/1984.

This guidance is superseded in part by 8/25/1988 guidance on use and enforcement of information requests and subpoenas to the extent that the earlier guidance addressed information gathering under CERCLA s104(e).

• Policy on Enforcing Information Requests in Hazardous Waste Cases (PDF)(17 pp, 795 K)