The Massachusetts Oil and Hazardous Materials Release, Prevention and Response Act (M.G.L. c.21E) and the Massachusetts Contingency Plan (the MCP), 310 CMR 40.0000, contain the requirements and timeframes for completing the cleanup of releases. Many clients have reached out to CSE after receiving a MassDEP ‘Notice of Responsibility’ letter, indicating an urgent legal matter and requiring necessary prompt action. CSE is able to help decipher the legal and statutory liabilities, necessary response actions, and options available. If you have received one of these letters, please review the Massachusetts Contingency Plan (MCP) First Year Compliance Fact Sheet and contact CSE as soon as possible to review your case.