PTDR facilities eclipse the most stringent of environmental standards. The PTDR technology has received numerous regulatory approvals throughout the globe, including:

United States Environmental Protection Agency
Taiwanese Environmental Protection Agency
Taiwan Ministry of Education
Kaohsiung Department of Environmental Protection
Virginia Department of Environmental Quality
Alabama Department of Environmental Management
City of Huntsville Natural Resources Division
San Diego Air Pollution Control District
Indiana Department of Environmental Management
Michigan Department of Environmental Quality
California Department of Public Health

During the permitting effort in San Diego, the PTDR Technology was certified as an "alterative-to-incineration" technology for medical waste in the State of California. Click here for some comparisons between permit levels and PTDR systems.

Additionally, independent laboratory tests have proven that the glass product does not leach (toxicity characteristic leaching procedure), also known as “TCLP.” This information demonstrates the glass product is totally benign, safe for any re-utilization (i.e. recycling).

The PTDR glass product exceeds the most rigorous TCLP standard.