Below, read the announcement of Massachusetts' new preregistration system for mass vaccination locations and vaccine clinic days for educators sent out by the Baker Administration on Wednesday: The Baker-Polito Administration today announced a new preregistration signup tool will be available for the state’s seven mass vaccination sites starting Friday, March 12. The new system will make it easier to request and book an appointment at a mass vaccination site at a nearby location when they are eligible. More sites will be added to the preregistration system in the coming weeks. When preregistration launches on Friday, it will replace the current booking platforms for mass vaccination sites for online booking. The COVID-19 Vaccine Scheduling Resource Line will be available to help residents without internet access or with difficulty using the internet with the preregistration process.