Hazardous Materials Training Waste Operations and Emergency Response is a set of guidelines produced and maintained by the Occupational Safety and Health Administration which regulates hazardous waste operations and emergency services in the United States and its territories.
 With these guidelines, the U.S. government regulates hazardous wastes and dangerous goods from inception to disposal. HAZWOPER applies to five groups of employers and their employees. This includes employees who are exposed (or potentially exposed) to hazardous substances (including hazardous waste) and who are engaged in one of the following operations as specified by OSHA regulations 1910.120(a)(1)(i-v) and 1926.65(a)(1)(i-v):  Cleanup operations required by a governmental body (federal, state, local or other) involving hazardous substances conducted at uncontrolled hazardous-waste sites
Voluntary cleanup operations at sites recognized by a federal, state, local, or other governmental body as uncontrolled hazardous-waste sites Operations involving hazardous waste which are conducted at treatment, storage and disposal facilities regulated by Title 40 of the Code of Federal Regulations, parts 264 and 265 pursuant to the RCRA, or by agencies under agreement with the U.S. Environmental Protection Agency to implement RCRA regulations
 Written for government contractors and first responders, the manual lists safety requirements for cleanups and emergency-response operations.General site workers initially require 40 hours of instruction, three days of supervised hands-on training and eight hours of refresher training annually. Workers limited to a specific task, or workers on fully characterized sites with no hazards above acceptable levels, require 24 hours of initial training, one day of supervised hands-on training and eight hours of refresher training annually. Managers and supervisors require the same level of training as those they supervise, plus eight hours. Workers at a treatment, storage or disposal facility handling RCRA waste require 24 hours of initial training and eight hours of refresher training annually. The First Responder Awareness Level requires sufficient training to demonstrate competence in assigned duties. The First Responder Operations Level requires Awareness-Level training plus eight hours. Hazardous Materials Technicians require 24 hours training plus additional training to achieve competence in specialized areas.