Pressure is mounting on EPA to strengthen oversight of chemical facilities to better prepare them for disaster risks at the sites. Experts, former agency leaders and lawmakers are calling on EPA to tighten loopholes and beef up its risk management plan, or RMP, which instructs certain facilities to develop contingency plans in case of a crisis. Those sites, which handle high-risk chemicals, are vulnerable to climate impacts and other events that can imperil their surrounding communities and environment. EPA Administrator Michael Regan said last month that the agency plans to update the RMP and issue a new rule by this September. Now, EPA is seeing an uptick in calls for the regulations to address a range of concerns, stemming from environmental justice to national security.