The Commission on Environmental Quality proposed to adopt 30 Tex. Admin. Code §106.513, Turbines and Engines. The rule would add a permit for combined heat and power turbines, in which heat resulting from the operation of the engine or turbine is recovered and used for another purpose. There will be a public hearing April 3, 2012, and the deadline for comment is April 9. See http://www.sos.state.tx.us/texreg/pdf/backview/0309/0309is.pdf (pp. 1649-56).