The bill amends Chapter 111 of the General Laws to enhance monitoring and reporting requirements for dry casks of spent nuclear fuel at facilities that previously generated electricity for retail customers in the Commonwealth. It introduces a new title for section 5K, "STORAGE OF SPENT NUCLEAR FUEL," and mandates that the owners and operators of these facilities report continuously and in real-time to the Department of Public Health's radiation control division regarding the temperature and rates of helium and radiation release from each dry cask. Additionally, the Department of Public Health is tasked with developing rules and regulations for this reporting in consultation with the Attorney General.

Furthermore, the bill stipulates that the licensee of each existing and proposed nuclear power plant in the Commonwealth must fully fund offsite radiological emergency response expenses incurred by the Commonwealth or municipalities after closure, until all spent fuel is removed from the spent fuel pool and placed in dry casks. It explicitly states that no funds from any Decommissioning Trust Fund may be used to meet this financial obligation.