EPA developed a summary of rule checklist 192 covering the Hazardous Waste Identification Rule (HWIR): Revisions to the Mixture and Derived-From Rules published on August 14, 2001. The purpose of this summary is to provide:

• Background on the rule
• Information about state authorization and the rule
• Program description guidance
• Incorporation by reference guidance
• Attorney General certification guidance

• Express Authorization: Rule Checklists 192 A and B Summary, Draft: State Program Advisory (SPA) 22 (PDF)(2 pp, 8 K, May 16, 2001)