This letter concerns the complaint of retaliation that you filed with the Department of Energy (DOE} under 10 C.F.R. Part 708. On March 24, 2006, the Office of Hearings and Appeals (OHA} received your petition for Secretarial review of the February 23 jurisdictional appeal decision issued by the OHA Director. Under the Part 708 regulations, the Secretary will reverse or revise an appeal decision by the Director of OHA only in extraordinary circumstances. 10 C.F.R. § 708.19.