The U.S. Environmental Protection Agency ("EPA" or "agency") is facing criticism from lawmakers and state agencies, among others, regarding its proposed amendments to the Risk Management Plan ("RMP") rule. On May 6, 2016, Representative Fred Upton (R-MI), Senator James Inhofe (R-OK), and Representative Steve Chabot (R-OH) co-signed a letter to EPA requesting an extension of the public comment period noting that "in response to numerous requests for an extension, the agency has declined to grant even a limited extension." The lawmakers further questioned whether EPA fully considered comments from small entities potentially subject to rule, and whether the agency evaluated potential conflicts with the Occupational Safety and Health Administration's pending revisions to its Process Safety Management standard. The public comment period closed on May 13, 2016.