of the two privately-run national radon programs (listed below alphabetically) who are offering proficiency listing/accreditation/certification in radon testing and mitigation. (Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government.) EPA-issued Radon Measurement (RMP) and Mitigation (RCP) Program photo-identification cards, and ANY item with EPA's logo or name, listing letters and identification numbers has not been valid since EPA closed its proficiency program in October 1998. Consequently, persons and companies should not represent themselves, their products or their services as "EPA Listed" or "EPA Approved" or "Meets EPA Requirements" or otherwise imply an EPA sanction. Consumers are encouraged to contact their State radon office for additional information or if you have a complaint or question. After the close of EPA's National Radon Proficiency Program (RPP) in 1998, there were requests that EPA offer some form of recognition of non-Federal radon proficiency programs. EPA developed recognition criteria and offered a one-time acknowledgment to both of the existing non-Federal national radon proficiency programs (The National Radon Safety Board (NRSB) and The National Environmental Health Association's (NEHA) National Radon Proficiency Program). This official acknowledgement [dated March 30, 2001] ran through December 31, 2002, at which time, EPA's determination expired. There were no extensions of this determination. To avoid misleading the public, the recognized programs were not to make reference to this EPA determination after December 31, 2002. EPA continues to