Certified Hazardous Materials Manager (CHMM) Practice Exam 2026 - Free CHMM Practice Questions and Study Guide

RCRA (Resource Conservation and Recovery Act) characteristic wastes encompass a broad category defined by four primary properties: toxicity, ignitability, reactivity, and corrosivity. To be classified as hazardous, wastes must exhibit one or more of these characteristics.

The characteristic of toxicity refers to a waste's ability to harm human health or the environment, often determined through leachate tests. Ignitable waste is characterized by its tendency to catch fire under certain conditions, while reactive wastes can generate violent reactions, such as explosions, when exposed to water or other substances. Corrosive wastes are those that can corrode materials or pose a risk of chemical burns.

This comprehensive approach to classifying hazardous materials helps ensure that all pertinent risks are considered in waste management practices. The inclusion of all four characteristics is crucial for proper identification and regulation, allowing for safer handling, disposal, and treatment of hazardous wastes.