Section 42F. At every registration session held pursuant to this chapter, a registrar or assistant registrar shall receive affidavits of registration from registrants who reside in any other city or town of the commonwealth. The registrars shall forthwith transmit any such completed affidavits of registration to the registrars of the city or town where such registrant claims to reside, and said registrars shall receive such affidavits as provided in sections forty-six to forty-seven B, inclusive. All registration agencies shall use the registration affidavit form prescribed by the state secretary under section thirty-six.