Established in 1971, NSSI Sources & Services Inc. is a radioactive-tracer materials manufacturer. Based in Houston, Texas, the company specializes in chemical and radioactive decontamination, leak testing, radiation-instrument calibration, radiation-safety training and waste disposal. It also provides personnel and equipment to aid in the packaging and transport of radioactive waste materials at customer sites. In addition to providing training in all areas of radiation and hazardous chemical handling, NSSI Sources & Services Inc. offers a complete consulting service to fit the needs of users of radioactive materials and radiation-producing equipment.