This information bulletin is intended to make Resource Conservation and Recovery Act (RCRA) permit writers, inspectors, and the regulated community aware of controls, conditions and sampling practices to ensure and determine compliance with RCRA land disposal restrictions (LDRs). LDRs include testing and recordkeeping requirements, treatment standards, various prohibitions and other conditions that ensure hazardous wastes are adequately treated before disposal, thereby minimizing impact on human health and the environment. This document is based on existing regulatory requirements, longstanding guidance, and formal policy, and provides an overview of the basis of LDR requirements. It focuses on strategies that permit writers and facilities can use to improve RCRA permits and Waste Analysis Plans (WAPs), as well as provides inspectors with tools to better determine compliance with LDRs