National Grid customers throughout the state will not be able to get work done on their gas systems unless it’s an emergency.
A worker in Woburn mistakenly let too much pressure into a gas line, forcing hundreds of homes to have their gas shut off.
This happened during routine maintenance work.
However, National Grid only services electrical customers in western Massachusetts.
The state’s DPU is also requiring that National Grid have an inspector on site for any work that could produce “abnormal pressurization.”
The Massachusetts Department of Public Utilities said the company needs to conduct a safety review before any non-emergency gas work can be done.
This comes at a time when More than 1,200 National Grid union workers are locked out after refusing a new contract offer.
A state review of the company shows that national grid may have violated federal safety regulations more than 30 times since the lockout began.
National Grid provides gas service to more than 900,000 customers throughout Massachusetts.
The gas explosions in the Merrimack Valley last month heightened concerns about gas safety, after one person was killed, and dozens of homes damaged or destroyed.
This was said to be caused by an over-pressurized situation by Columbia Gas.