Mass. Gen. Laws ch. 53, § 108: Order of business

Section 108. The order of business shall be as follows:

First, Any necessary preliminary business.

Second, Balloting until half past eight o'clock in the evening, when the polls shall be closed unless the caucus shall vote to keep them open until a later hour; but every voter waiting in line at the hour for closing the polls shall be allowed to vote.

Third, After the polls have been closed, any other business properly before the caucus.