Mass. Gen. Laws ch. 51 § 33A
The state secretary shall create and maintain a secure online portal allowing a person to complete an affidavit of registration online. The registration shall be transmitted by the state secretary to the appropriate local registrar. The online affidavit shall use the person's signature from the registry of motor vehicles records and the registrar of motor vehicles shall make appropriate provisions to facilitate the electronic transfer of the image of the signature to the central voter registry. If the person's signature cannot be found using the online affidavit of registration form, the person shall be so informed and given the option to print the affidavit of registration, append the person's signature and mail or hand deliver the signed affidavit directly to the appropriate registrar of voters. The registrars shall certify the receipt of each completed affidavit of registration and shall notify the person of the disposition of the affidavit. Nothing in this section shall be construed to change any registration deadline or qualification of voting. The state secretary shall make the online portal accessible in English, Spanish, Portuguese, Chinese and such additional languages as the state secretary deems necessary or required by law
Mass. Gen. Laws ch. 51, § 33A