MassLive.com reports, “Massachusetts transportation officials are offering a ‘grace period’ for drivers as the state converts to a cashless tolling system on the Mass. Pike.” As MassDOT official Thomas Tinlin describes the program, when a motorist without a transponder receives a “pay-by-plate” bill in the mail, he or she will have the opportunity to open an E-ZPass Massachusetts account. Motorists who open an account and pay the entire bill will receive an automatic credit on the new E-ZPass account “equal to the difference between the Pay By Plate Rate and E-ZPassMA rate.”