MassDEP Commissioner David W. Cash
Governor Deval Patrick swears in MassDEP Commissioner David W. Cash

David W. Cash was appointed on March 26, 2014 as Commissioner of the Massachusetts Department of Environmental Protection (MassDEP) by Governor Deval Patrick and his Secretary of Energy and Environmental Affairs, Richard K. Sullivan Jr.

Dr. Cash brings to MassDEP a wealth of experience in environmental, energy and regulatory sectors. He most recently held the position of Commissioner at the Massachusetts Department of Public Utilities (DPU) where he helped lead efforts to modernize the grid, expand the deployment of energy efficiency and renewable energy, and empower customers in their energy decisions. 

Prior to his work at the DPU, Dr. Cash was the Undersecretary for Policy in the Massachusetts Executive Office of Energy and Environmental Affairs (EEA). In this role, Dr. Cash advised the EEA Secretary on an array of issues, including climate change, energy, land management, water management, oceans, wildlife and fisheries, air and water quality, environmental and energy dimensions of transportation, and waste management. He was one of the architects of clean energy legislation and implementation in the first term of the Patrick Administration, including the Green Communities Act, the Global Warming Solutions Act, the Green Jobs Act and the Clean Energy Biofuels Act. As part of this work, he led the Secretariat's effort in developing the Massachusetts Clean Energy and Climate Plan for 2020, which provides a roadmap of policies and programs that will lower energy costs, create clean energy jobs and reduce greenhouse gas emissions.

Prior to working for the Commonwealth, Dr. Cash was a research associate at the John F. Kennedy School of Government at Harvard University, and a Lecturer in Environmental Science and Public Policy. He also taught science in the Amherst, Massachusetts public schools from 1990-1993. He received a Ph.D. in Public Policy from the Kennedy School at Harvard in 2001, and a B.S. in biology from Yale University in 1987.

He lives in Newton with his wife Annie and their two high-school-age children, Sophie and Eliza.