Conn. Gen. Stat. § 46a-82 : HUMAN RIGHTS — HUMAN RIGHTS AND OPPORTUNITIES — DISCRIMINATORY PRACTICE COMPLAINT PROCEDURE —82 - (Formerly Sec. 31-127). Complaint: Filing

(a) Any person claiming to be aggrieved by an alleged discriminatory practice, except for an alleged violation of section 4a-60g or 46a-68 or the provisions of sections 46a-68c to 46a-68f, inclusive, may, by himself or herself or by such person's attorney, file with the commission a complaint in writing under oath, except that a complaint that alleges a violation of section 46a-64c need not be notarized. The complaint shall state the name and address of the person alleged to have committed the discriminatory practice, provide a short and plain statement of the allegations upon which the claim is based and contain such other information as may be required by the commission. After the filing of a complaint, the commission shall provide the complainant with a notice that:
(1) Acknowledges receipt of the complaint; and
(2) advises of the time frames and choice of forums available under this chapter.
(b) The commission, whenever it has reason to believe that any person has been engaged or is engaged in a discriminatory practice, may issue a complaint, except for a violation of subsection (a) of section 46a-80.
(c) The commission, whenever it has reason to believe that any contractor or subcontractor is not complying with antidiscrimination statutes or contract provisions required under section 4a-60, 4a-60a or 4a-60g or the provisions of sections 46a-68c to 46a-68f, inclusive, may issue a complaint.
(d) The commission may issue a complaint if:
(1) An affirmative action plan filed pursuant to section 46a-68 is in violation of any of the provisions of section 4-61u or 4-61w, sections 46a-54 to 46a-64, inclusive, section 46a-64c or sections 46a-70 to 46a-78, inclusive; or
(2) an agency, department, board or commission fails to submit an affirmative action plan required under section 46a-68.
(e) Any employer whose employees, or any of them, refuse or threaten to refuse to comply with the provisions of section 46a-60 or 46a-81c may file with the commission a written complaint under oath asking for assistance by conciliation or other remedial action.
(f)
(1) Any complaint filed pursuant to this section for an alleged act of discrimination that occurred prior to October 1, 2021, shall be filed within one hundred and eighty days after the date of the alleged act of discrimination, except that any complaint by a person (A) claiming to be aggrieved by a violation of subsection (a) of section 46a-80 that occurred before October 1, 2019, shall be filed within thirty days of the date of the alleged act of discrimination, and (B) claiming to be aggrieved by a violation of section 46a-60, sections 46a-70 to 46a-78, inclusive, or section 46a-80 or 46a-81c, that occurred on or after October 1, 2019, and prior to October 1, 2021, shall be filed not later than three hundred days after the date of the alleged act of discrimination.
(2) Any complaint filed pursuant to this section for an alleged act of discrimination that occurred on or after October 1, 2021, shall be filed within three hundred days after the date of the alleged act of discrimination.

Conn. Gen. Stat. § 46a-82

(1949 Rev., S. 7406; 1959, P.A. 334; February, 1965, P.A. 576; 1967, P.A. 715, S. 3; 1971, P.A. 547, S. 1; P.A. 74-54; P.A. 75-27; 75-214, S. 1, 2; P.A. 76-141, S. 1, 2; P.A. 80-422, S. 30; P.A. 83-569, S. 13, 17; P.A. 90-246, S. 9; P.A. 91-58, S. 28; P.A. 07-142, S. 5; June Sp. Sess. P.A. 15-5, S. 74.)

Amended by P.A. 21-0109,S. 5 of the Connecticut Acts of the 2021 Regular Session, eff. 10/1/2021.
Amended by P.A. 21-0040,S. 48 of the Connecticut Acts of the 2021 Regular Session, eff. 10/1/2021.
Amended by P.A. 19-0016,S. 6 of the Connecticut Acts of the 2019 Regular Session, eff. 10/1/2019.
Amended by P.A. 15-0005, S. 74 of the Connecticut Acts of the 2015 Special Session, eff. 10/1/2015.

Annotations to former section 31-127: Former limitation period of 6 months did not begin to run until expiration of period within which it could reasonably be expected that application would be acted upon. 140 Conn. 537. Where nothing in the record indicated consideration of commission's complaint by commission members, complaint did not contain the date of the alleged unfair practice as required by regulation and nowhere in the statement of facts, finding or conclusion of the hearing tribunal did it appear when plaintiff was alleged to have committed the act charged, held the complaint and findings were defective and plaintiff's appeal from cease and desist order of commission's hearing tribunal should be sustained. 153 C. 174. Cited. Id., 652; 163 Conn. 327; 165 Conn. 318; 170 Conn. 327; 176 C. 291; 178 C. 700; 198 Conn. 479; 211 Conn. 464. Order must be limited to unfair practice found to exist and should leave applicant free to determine whether or not he still seeks that employment; it should not be an affirmative order to employ the applicant. 17 Conn.Supp. 93. Former 6-month period of limitation cannot begin until the discrimination is established. 18 CS 131. Legislative intent was to impose mere administrative duty on chairman to appoint hearing tribunal after certification of complaint; no discretion involved; only hearing tribunal can determine whether unfair employment practice exists; Attorney General has no authority to overrule investigator's certification. 27 CS 147. Cited. 28 CS 344. Statute contemplates no determination of probable cause until after an investigation has been completed. 35 Conn.Supp. 565. Annotations to present section: Cited. 195 Conn. 226; Id., 543; 198 Conn. 479; 202 Conn. 601; Id., 609; 211 Conn. 464; 232 Conn. 91; 236 Conn. 250. Cited. 3 Conn.App. 464; 44 Conn.App. 446. Subsec. (a): Statute does not require that specific statutory reference be stated in complaint. 46 CS 153. Subsec. (e): Filing requirement is not pure statute of limitations which may be raised only by a party as a special defense; commission has standing to raise time limit issue due to its institutional responsibilities in the petition process, which are different from those of a court; filing requirement is not subject matter jurisdictional; it is mandatory and subject to consent, waiver or equitable tolling. 257 C. 258. Subsec. is a mandatory time limitation and is jurisdictional. 54 CA 251. Filing period commences upon actual cessation of employment, rather than notice thereof. 103 CA 188. Subsec. (f): Statute of limitations began to run on the last day the plaintiff worked, not on the date of notice thereof. 289 C. 57. Town's failure to further investigate plaintiff's allegations, absent other allegations, does not constitute a discriminatory act from which the statute of limitations would run. 136 CA 278. Because allegations in the amended complaint present a different set of operative facts from those presented in the initial complaint, the relation back doctrine is inapplicable, and therefore allegations of retaliatory acts occurring more than 180 days prior to filing of amended complaint are time barred. 138 CA 141.