CT Gen Stat § 9-415 (2020)
2020 Connecticut General Statutes|Title 9 - Elections|Chapter 153 - Nominations and Political Parties|Section 9-415 - When primary required.

 (a) If a candidacy for nomination by a political party to a state office is filed by or on behalf of any person other than a party-endorsed candidate within the time specified in subsection (a) of section 9-400 and in conformity with the provisions of section 9-400, a primary shall be held in each municipality of the state to determine the nominee of such party for such office, except as provided in section 9-416a.(b) If a candidacy for nomination by a political party to a district office is filed by or on behalf of any person other than a party-endorsed candidate within the time specified in subsection (b) of section 9-400 and in conformity with the provisions of section 9-400, a primary shall be held in each municipality of the district and each part of a municipality which is a component part of the district, to determine the nominee of such party for such office, except as provided in section 9-416a.(c) If a candidacy for nomination by a political party to a municipal office is filed by or on behalf of any person other than a party-endorsed candidate within the applicable time specified in section 9-405 and in conformity with the provisions of sections 9-405, 9-406, 9-406a, 9-409, 9-410, 9-412 and 9-414, a primary shall be held in the municipality or political subdivision thereof in which the nomination for municipal office is to be made, to determine the nominee of such party for such office, except as provided in section 9-418.(d) If candidacies numbering at least twenty-five per cent of the number of town committee members to be elected by a party either in the municipality or in the political subdivision, as the case may be, are filed by or on behalf of persons other than party-endorsed candidates within the time specified in subdivision (1) of subsection (a) of section 9-405 and in conformity with the provisions of sections 9-405, 9-406, 9-406a, 9-409 to 9-412, inclusive, and 9-414, a primary shall be held in the municipality or political subdivision thereof in which members of a town committee are to be elected, to elect the members of the town committee, except as provided in sections 9-419 and 9-421.(June, 1955, S. 586d; November, 1955, S. N66; 1957, P.A. 518, S. 14; 1958 Rev., S. 9-94; 1963, P.A. 17, S. 42; 1967, P.A. 557, S. 17; P.A. 73-657, S. 11, 13; P.A. 79-616, S. 11; P.A. 80-483, S. 38, 186; P.A. 81-447, S. 10, 23; 81-472, S. 9, 159; P.A. 03-241, S. 33.)History: 1963 act restated previous provisions; 1967 act added, following “senatorial district”, “or assembly district or in each part of a municipality which is a component part of a senatorial district composed of a town or towns and a part or parts of another town or towns”; P.A. 73-657 added clarifying descriptive language for senatorial and assembly districts whose boundaries extend beyond limits of one town or part thereof; P.A. 79-616 changed references from Sec. 9-399 to Sec. 9-400 where appearing; P.A. 80-483 made technical changes; P.A. 81-447 added reference to Sec. 9-416a; P.A. 81-472 made technical changes; P.A. 03-241 replaced former provisions with new Subsecs. (a) to (e), inclusive, re when primaries required, effective January 1, 2004, and applicable to primaries and elections held on or after that date.