Key Takeaway
New York's Second Department clarifies that missing CPLR 2309(c) certificates of conformity for out-of-state affidavits are not fatal defects in litigation.
This article is part of our ongoing 2106 and 2309 coverage, with 194 published articles analyzing 2106 and 2309 issues across New York State. Attorney Jason Tenenbaum brings 24+ years of hands-on experience to this analysis, drawing from his work on more than 1,000 appeals, over 100,000 no-fault cases, and recovery of over $100 million for clients throughout Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx. For personalized legal advice about how these principles apply to your specific situation, contact our Long Island office at (516) 750-0595 for a free consultation.
For decades, New York practitioners have grappled with the technical requirements of CPLR 2309(c), which governs the use of out-of-state affidavits in court proceedings. This provision requires that affidavits executed outside New York be accompanied by a “certificate of conformity” — essentially verification that the document complies with the laws of the state where it was executed. Courts have sometimes excluded otherwise valid affidavits solely because they lacked this technical certification, creating unnecessary barriers to presenting evidence.
The Second Department’s decision in Fredette v Town of Southampton represents a significant clarification on this procedural requirement. Rather than treating the absence of a certificate of conformity as an automatic disqualification, the court recognized that such technical defects should not prevent courts from considering substantively valid evidence. This approach aligns with broader principles favoring resolution of cases on their merits rather than on procedural technicalities.
Jason Tenenbaum’s Analysis:
Fredette v Town of Southampton, 2012 NY Slip Op 03595 (2d Dept. 2012)
“it improvidently exercised its discretion in excluding from consideration the affidavits of Ken Glaser and Kris Kubly on the ground that the affidavits, while notarized, were not accompanied by a certificate of conformity required by CPLR 2309(c). This Court has previously held that the absence of a certificate of conformity for an out-of-state affidavit is not a fatal defect (see Smith v Allstate Ins. Co., 38 AD3d 522, 523), a view shared by the Appellate Division, First and Third Departments as well (see Matapos Tech. Ltd. v Compania Andina de Comercio Ltda, 68 AD3d 672 ; Sparaco v Sparaco, 309 AD2d 1029, 1031 ; Nandy v Albany Med. Ctr. Hosp., 155 AD2d 833 ; see also Connors, Practice Commentaries, McKinney’s Cons Laws of NY, Book 7B, CPLR C2309:3).”
Key Takeaway
The Fredette decision effectively puts to rest the notion that CPLR 2309(c) certificate of conformity requirements should be strictly enforced. With all four Appellate Departments now in agreement, practitioners can be confident that missing certificates will not automatically doom their out-of-state affidavits, allowing courts to focus on substantive procedural compliance rather than technical formalities.
Legal Update (February 2026): CPLR 2309(c) and its certificate of conformity requirements may have been subject to legislative amendments or judicial interpretations since 2012. Practitioners should verify current provisions regarding out-of-state affidavits and any procedural changes that may affect the Fredette court’s analysis of technical compliance requirements.
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Legal Context
Why This Matters for Your Case
New York law is among the most complex and nuanced in the country, with distinct procedural rules, substantive doctrines, and court systems that differ significantly from other jurisdictions. The Civil Practice Law and Rules (CPLR) governs every stage of civil litigation, from service of process through trial and appeal. The Appellate Division, Appellate Term, and Court of Appeals create a rich and ever-evolving body of case law that practitioners must follow.
Attorney Jason Tenenbaum has practiced across these areas for over 24 years, writing more than 1,000 appellate briefs and publishing over 2,353 legal articles that attorneys and clients rely on for guidance. The analysis in this article reflects real courtroom experience — from motion practice in Civil Court and Supreme Court to oral arguments before the Appellate Division — and a deep understanding of how New York courts actually apply the law in practice.
About This Topic
CPLR 2106 and 2309: Affirmation & Oath Requirements
CPLR 2106 governs who may submit an affirmation in lieu of an affidavit in New York courts, while CPLR 2309 addresses the requirements for oaths, affidavits, and the certification of out-of-state documents. These seemingly technical provisions have significant practical impact — an improperly executed affirmation or affidavit can render an entire summary judgment motion defective. These articles analyze the formal requirements, common defects, and court decisions that practitioners must navigate when preparing sworn statements.
194 published articles in 2106 and 2309
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Frequently Asked Questions
What is the difference between a CPLR 2106 affirmation and a CPLR 2309 affidavit?
A CPLR 2106 affirmation can be signed by an attorney, physician, dentist, or podiatrist without notarization — the affirmant simply affirms under penalty of perjury. A CPLR 2309 affidavit requires a notary public or authorized officer to administer an oath. Using the wrong form can result in a court rejecting the submission.
When must I use a notarized affidavit versus an affirmation in New York?
Licensed attorneys, physicians, dentists, and podiatrists may use unsworn affirmations under CPLR 2106. All other individuals must use notarized affidavits under CPLR 2309. In no-fault litigation, this distinction frequently arises when submitting medical evidence or opposing summary judgment motions.
Can a court reject evidence submitted in the wrong format?
Yes. Courts routinely reject affidavits and affirmations that do not comply with CPLR 2106 or 2309. An improperly sworn document may be treated as a nullity, which can be fatal to a motion for summary judgment or opposition. Proper formatting is a critical procedural requirement in New York practice.
What are common procedural defenses in New York no-fault litigation?
Common procedural defenses include untimely denial of claims (insurers must issue denials within 30 days under 11 NYCRR §65-3.8(c)), failure to properly schedule EUOs or IMEs, defective service of process, and failure to comply with verification request requirements. Procedural compliance is critical because courts strictly enforce these requirements, and a single procedural misstep by the insurer can result in the denial being overturned.
What is the CPLR and how does it affect my case?
The New York Civil Practice Law and Rules (CPLR) is the primary procedural statute governing civil litigation in New York state courts. It covers everything from service of process (CPLR 308) and motion practice (CPLR 2214) to discovery (CPLR 3101-3140), statute of limitations (CPLR 213-214), and judgments. Understanding and complying with CPLR requirements is essential for successful litigation.
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About the Author
Jason Tenenbaum, Esq.
Jason Tenenbaum is the founding attorney of the Law Office of Jason Tenenbaum, P.C., headquartered at 326 Walt Whitman Road, Suite C, Huntington Station, New York 11746. With over 24 years of experience since founding the firm in 2002, Jason has written more than 1,000 appeals, handled over 100,000 no-fault insurance cases, and recovered over $100 million for clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, the Bronx, and Staten Island. He is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.
Jason is admitted to practice in New York, New Jersey, Florida, Texas, Georgia, and Michigan state courts, as well as multiple federal courts. His 2,353+ published legal articles analyzing New York case law, procedural developments, and litigation strategy make him one of the most prolific legal commentators in the state. He earned his Juris Doctor from Syracuse University College of Law.
Disclaimer: This article is published by the Law Office of Jason Tenenbaum, P.C. for informational and educational purposes only. It does not constitute legal advice, and no attorney-client relationship is formed by reading this content. The legal principles discussed may not apply to your specific situation, and the law may have changed since this article was last updated.
New York law varies by jurisdiction — court decisions in one Appellate Division department may not be followed in another, and local court rules in Nassau County Supreme Court differ from those in Suffolk County Supreme Court, Kings County Civil Court, or Queens County Supreme Court. The Appellate Division, Second Department (which covers Long Island, Brooklyn, Queens, and Staten Island) and the Appellate Term (which hears appeals from lower courts) each have distinct procedural requirements and precedents that affect litigation strategy.
If you need legal help with a 2106 and 2309 matter, contact our office at (516) 750-0595 for a free consultation. We serve clients throughout Long Island (Huntington, Babylon, Islip, Brookhaven, Smithtown, Riverhead, Southampton, East Hampton), Nassau County (Hempstead, Garden City, Mineola, Great Neck, Manhasset, Freeport, Long Beach, Rockville Centre, Valley Stream, Westbury, Hicksville, Massapequa), Suffolk County (Hauppauge, Deer Park, Bay Shore, Central Islip, Patchogue, Brentwood), Queens, Brooklyn, Manhattan, the Bronx, Staten Island, and Westchester County. Prior results do not guarantee a similar outcome.