Republic Services is a provider of non-hazardous solid waste collection, transfer, disposal, recycling, and environmental services in the United States. The company operates through collection operations, transfer stations, active landfills, recycling processing centers, treatment, recovery and disposal facilities, salt water disposal wells, and deep injection wells. In addition, the company is engaged in landfill gas-to-energy and renewable energy projects and had post-closure responsibility for closed landfills. The company's operations primarily consist of providing collection, transfer and disposal of non-hazardous solid waste, recovering and recycling of certain materials, and environmental services.