On Monday, April 30,2018, EPA proposed to regulate itself! The new policy would direct "EPA to ensure that the regulatory science underlying its actions is publicly available in a manner sufficient for independent validation." EPA cited the work of Randy Lutter (Frank Batten School of Leadership and Public Policy, University of Virginia) and our own David Zorn, who called for all federal regulatory agencies to do this. (See On the Benefits and Costs of Public Access to Data Used to Support Federal Policy Making, 2016) Most citizens probably are not aware how often their government imposes millions and billions of dollars of requirements on the economy without providing the evidence that the requirements are needed. Transparency is the hallmark of good science and good public policy. Hopefully, all other regulatory agencies will follow suit. Just post the data!