Massachusetts Department of Environmental Protection

Mass DEP serves the Commonwealth of Massachusetts by enforcing the laws that protect the air, land and water of its constituents.  The Department helps cities and towns with local environmental issues and writes permits that support natural resources, public health and the Massachusetts economy. They also inspect contaminated sites and ensure proper cleanup, working with federal, state, local and citizen partners for a cleaner environment.

In 2015 Mass DEP implemented a regulation to require MA utilities to track and report SF6 emissions

310 CMR 7.72
Coalition Summary of Mass DEP Regulation