Conn. Gen. Stat. § 9-232j: Provisional ballot packets for elections for federal office.

The moderator of the election in each voting district shall appear at the office of the town clerk not later than eight o'clock p.m. of the day before an election for federal office. At such time, the town clerk shall provide a provisional ballot packet to such moderator or moderators. Each packet shall include: (1) The appropriate number of provisional ballots for federal office provided by the Secretary of the State, which shall be equal to not less than one per cent of the number of electors who are eligible to vote in the voting district served by the moderator, or such other number as the municipal clerk and the registrars agree is sufficient to protect electors' voting rights, (2) the appropriate number of serially-numbered envelopes prescribed by the Secretary, (3) a provisional ballot inventory form, (4) a provisional ballot depository envelope, and (5) other necessary forms prescribed by the Secretary.