(1) The Office shall maintain the operation of a do not call registry on which to compile a list of names and telephone numbers of Massachusetts consumers who elect not to receive unsolicited telephonic sales calls. Such registry may be operated by the Office or by any other authorized entity under contract with the Office.

(2) Massachusetts consumers may enroll in the registry in a manner prescribed by the Office at no cost to the enrolling consumer. Enrollment will become effective 60 days after the appearance of the consumer's listing in the first quarterly registry that is available after the consumer enrolls.

(3) A Massachusetts consumer who enrolls in the registry will remain validly enrolled in the do not call registry until such time as the enrolled consumer makes a written request for deletion of the applicable listing on a form as prescribed by the Office.

(4) If an enrolled consumer's listed telephone number changes during the period of enrollment, said change shall operate in the same fashion as a written request for deletion and the consumer will be deemed disenrolled in the registry for that particular telephone number.

(5) Deletions and disenrollments shall be made within a reasonable time of notice but in no event later than the publication of first quarterly registry that is available 60 days after the date of written request for deletion by the enrolled consumer.

(6) Business telephone subscribers may not be included in the registry.

(7) The Office, or its designated representative, may purge the registry periodically to ensure accuracy.