The Hazardous Waste Operations and Emergency Response Standard (HAZWOPER) applies to five distinct groups of employers and their employees. These include any employees who are exposed or potentially exposed to hazardous substances — including hazardous waste — and who are engaged in one of the following operations:

• 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.

(Further information can be obtained in osha documents as specified by 1910.120 and 1926.65)

OSHA has authorized several specific HAZMAT training courses know has the hazwoper training courses.These courses are comprised of the 40 hour hazwoper, 24 hour hazwoper and the 8 hour hazwoper refresher course. 

Many OSHA authorized sites like OSHAu.com offer hazwoper training courses online.  These courses can be taken in self-paced downloadable modules which allow the student to complete the required training at their leisure.  Online training also offers employers the benefit of allowing their employees to take the required training from any internet-based computer eliminating travel costs and while maintaining productivity. The benefits of online training are realized through increased safety and health of employees and an increased protection of our environment and it's resources. 

HazMat Training Tools - from BullEx