The RCRA Permit Policy Compendium is a reference for Regional and State permit writers which consists of Headquarters' permitting policies and procedures. The Compendium volumes include the Users' Guide, a key word index, and reference memoranda, letters, Office of Solid Waste and Emergency Response (OSWER) Directives, and other documents organized chronologically within subject categories. The Compendium was originally compiled in late 1985. The updated Compendium includes documents issued through September 30, 1990. A key word index is included in Vol. I to assist the user in identifying and locating relevant documents. The index, organized in alphabetical order, lists the topic and the documents which are relevant to the topic, identified by title, document number and date. The key word index groups related topics and cross references topics which may be relevent. Subkey words have been identified as a means to specify groups of titles which may fall within a broader key word category. Summaries of documents which had been included in the original Compendium have been deleted. Users of the original Compendium did not find them useful.