The letter confirms that the author has over 25 years of nuclear experience and has witnessed Mr. Scott Sittner working on multiple nuclear projects. The author and Mr. Sittner worked together on nuclear repair projects at Dresden Nuclear Station and were contracted project managers for Watts Barr Nuclear Station. The author is also aware of Mr. Sittner's work for the US Department of Energy from their time supporting the DOE at Hanford Site. Over the last ten years, Mr. Sittner has developed nuclear quality programs across the industry and worked as an owner/manager of a nuclear consulting company.