Supporting and opposing affidavits shall be made on personal knowledge, shall set forth such facts as would be admissible in evidence, and shall show affirmatively that the affiant is competent to testify to the matters stated therein. Sworn or certified copies of all papers or parts thereof referred to in an affidavit shall be attached thereto.
Section 17-46.—Form of Affidavits
Current through August 12, 2025 (2026 Practice Book edition) · Last verified July 9, 2026
In one sentenceThis rule requires that affidavits filed in support of or opposition to a summary judgment motion rest on the affiant’s personal knowledge, contain only admissible facts, show the affiant is competent to testify, and attach sworn or certified copies of any referenced papers.
Full Text of Section 17-46
Amendment History
(P.B. 1978-1997, Sec. 381.)
Plain-English Summary
Section 17-46 sets the technical requirements for affidavits used on summary judgment, whether filed to support or to oppose the motion. Each affidavit must be made on personal knowledge, must set out facts that would be admissible in evidence, and must show affirmatively that the affiant is competent to testify to the matters stated. Any papers referred to in the affidavit — or the relevant parts of them — must be attached as sworn or certified copies.
Frequently Asked Questions
What must a summary judgment affidavit contain in Connecticut?
Facts within the affiant’s personal knowledge that would be admissible in evidence, along with a showing that the affiant is competent to testify to those matters.
Do documents referenced in a summary judgment affidavit need to be attached?
Yes. Sworn or certified copies of all papers, or the relevant parts of them, referred to in the affidavit must be attached to it.
Does this rule apply to affidavits opposing summary judgment as well as supporting it?
Yes, Section 17-46 applies equally to supporting and opposing affidavits.
Source & verification. The section text is reproduced verbatim from the
official Connecticut Practice Book (Conn. Practice Book § 17-46). Prescribed by the Judges of the Superior Court of Connecticut (Conn. Gen. Stat. Section 51-14). The plain-English summary is original and written by us. Last verified July 9, 2026. ·
Official source
Also known as: affidavit requirements summary judgment CTpersonal knowledge affidavit Connecticutcompetent to testify affidavitsworn copies exhibits affidavitsummary judgment affidavit form