US EPA is concerned that some natural gas processing plants that store and process liquefied petroleum gas (LPG) may not be designed in accordance with applicable industry standards and codes. When undertaking compliance monitoring activities at such natural gas processing plants, EPA considers whether facilities are designed in accordance with recognized and generally accepted good engineering practices (RAGAGEPs), including applicable standards and codes, in determining compliance with the requirements of the risk management provisions of section 112(r) of the Clean Air Act, 42 U.S.C. § 7412(r), and the Chemical Accident Prevention Provisions of 40 C.F.R. part 68. This interim advisory is being issued to raise industry awareness of codes and standards that may be applicable to such facilities. EPA may issue a final national advisory on this subject after receiving additional stakeholder feedback. CLICK HERE (pdf) for the advisory.