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Hazardous Waste Operations and Emergency Response (HAZWOPER; // HAZ-waw-pər) is a set of guidelines produced and maintained by the Occupations Safety and Health Administration that regulates hazardous waste operations and emergency services conducted around inside of the United States and its territories. The auspices of this regulation are an effort for the US Government to regulate hazardous wastes and dangerous goods from the inception into society and their handling throughout the lifetime of that hazardous waste or material.
The Hazardous Waste Operations and Emergency Response Standard (HAZWOPER) applies to five distinct groups of employers and their employees. This includes any 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 1910.120(a)(1)(i-v) and 1926.65(a)(1)(i-v): 
Clean-up operations -- required by a governmental body, whether federal, state, local, or other involving hazardous substances -- that are conducted at uncontrolled hazardous waste sites; corrective actions involving clean-up operations at sites covered by the Resource Conservation and Recovery Act of 1976 (RCRA) as amended (42 U.S.C. 6901 et seq.);
Voluntary clean-up operations at sites recognized by federal, state, local, or other governmental body as uncontrolled hazardous waste sites;
Operations involving hazardous wastes that are conducted at treatment, storage, and disposal facilities regulated by Title 40 Code of Federal Regulations Parts 264 and 265 pursuant to RCRA, or by agencies under agreement with U.S. Environmental Protection Agency to implement RCRA regulations; and
Emergency response operations for releases of, or substantial threats of releases of, hazardous substances regardless of the location of the hazard.
The most common manual for HAZWOPER activities is Department of Health and Human Services Publication 85–115, "Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities". Targeted at government contractors and first responders, the manual documents the safety requirements for conducting clean-ups and emergency response operations.
Although the acronym pre-dates OSHA (Occupational Safety and Health Administration), today HAZWOPER is a term most often used to describe OSHA-required regulatory training. It had relevance dating back to World War II when waste accumulated in construction of the Atom Bomb at the Hanford Site (The Secret City). Years later, high-profile environmental mishaps forced action from the legislative branch of the US Government. For example, the 1978 Love Canal disaster and 1979 Valley of the Drums incident awakened America to the need to control and contain hazardous waste in the United States. Two programs, CERCLA, the Comprehensive Environmental Response, Compensation, and Liability Act, and RCRA, the Resource Conservation and Recovery Act of 1976 were implemented to deal with these wastes. CERCLA, also known as the Superfund, was designed to deal with already existing waste sites while RCRA was designed to deal with newly generated wastes. Originally, the term HAZWOPER was derived from the United States Department of Defense's Hazardous Waste Operations (HAZWOP), implemented on military bases which were slated for clean-up operations to dispose of hazardous wastes that were left on-site after World War II. One such 500-square-mile (1,300 km2) site is run by the US Government and some of the world's largest constructors such as Bechtel National, Inc. and others. In 1989, production stopped and work shifted to cleanup of portions of the site contaminated with hazardous substances, including both radionuclides and chemical waste. OSHA created HAZWOPER along with input from USCG, NIOSH, and United States Environmental Protection Agency (EPA). In 1984 the joint agency effort published the Hazardous Waste Operations and Emergency Response Guidance Manual  In 1989, OSHA promulgated the standard in March 6, 1990 as the HAZWOPER Standard, 1910.120, Hazardous Waste Operations and Emergency Response which codified the safety and health requirements companies would have to meet in order to perform hazardous waste cleanups or to respond to emergencies.
OSHA recently released an interpretation; the HAZWOPER 40-Hour training for clean-up workers will not suffice as technician level training for emergency response situations. This was in response to a letter from TRC in Indiana. However, (as a result of the Gulf Deepwater Horizon Oil Spill) according to the Washington D.C. compliance division, OSHA would allow exceptions to HAZWOPER 40-Hour trained workers being on or in marine modules that typically are in emergency response allowed to do technician-level work in the water with 24 Hour Technician level training and on the beaches where they could potentially come in contact with hazardous substances. Point being it was NOT regulated by OSHA however OSHA provided assistance while it was still a "National Emergency". Site safety and health officers in conjunction with the Site Specific Health and Safety Plan verify marine compliance on chemical or oil spill clean-ups in coordination with other agencies. A Site Safety Supervisor typically has 40 hours of HAZWOPER training unless they are required to go on.
HAZWOPER sites require site security and site controls. It is to protect the public, the environment, and the site from vandalism and especially protect the workers and account for them entering or leaving the site. National disasters are not regulated by OSHA until it has been downgraded from a disaster site. OSHA is only involved to assist the private sector in a National Disaster under the National Contingency Plan.
The HAZWOPER standard covers five specific areas of operations, including:
Hazardous wastes are defined by the standard as:
The term HAZWOPER recently has been referenced in international cleanup, mostly where U.S. military bases are still being cleaned up, or in some cases with NATO allies such as Canada, particularly when U.S. firms are involved with Hazardous Waste Operations and Emergency Response. While the OSHA standard does not apply to these operations, some of the countries involved are working on adopting similar standards to protect workers. In some cases it has proven difficult because they lack the safety infrastructure that the HAZWOPER standard is built on.
OSHA recognizes several levels of training, based on the work the employee will be performing and the level of hazard they will be facing. Each level requires a different training program, and OSHA specifies topics and minimum training times.
The training is what makes HAZWOPER unique. In some instances the training levels may or may not overlap in other cases these are prohibited by OSHA because workers without specific training may not be able to characterize waste unless trained to do that task. The Site Safety Supervisor or Officer should be consulted and a competent industrial hygienist or other technically qualified person who is HAZWOPER trained.
There are many sources for OSHA-compliant HAZWOPER training. Community colleges, labor unions, employers, and training companies are all good sources for training. The employer must ensure the training provider covers the areas of knowledge required by the standard and provides certification to the students that they have passed the training. The certification attaches to the student, not the employer, so it is imperative that the trainer cover all aspects of HAZWOPER operations, not just those expected at the current worksite (EPA's formerly comprehensive approach). However OSHA's interpretations now require clean-up workers (to have focus on PPE) separated from emergency response (to deal with hazardous materials unknowns).[better source needed]
EPA conducted emergency response activities in March 1979….