An expert affidavit is not required to file an ordinary car accident lawsuit in Georgia. The affidavit requirement under O.C.G.A. § 9-11-9.1 applies to professional malpractice and product liability claims, not to standard negligence cases.
Section 9-11-9.1 requires a plaintiff alleging professional malpractice to file, with the complaint, an affidavit from an expert competent to testify, identifying at least one negligent act or omission and the factual basis for the claim. This requirement targets claims against licensed professionals such as doctors, lawyers, accountants, and architects, where specialized standards of care are at issue. It also applies to product liability claims, where an affidavit must address the alleged defect.
A typical car accident claim is ordinary negligence, not professional malpractice. It arises from the duty every driver owes to operate a vehicle with reasonable care, which a jury can evaluate without a pre-suit expert affidavit. As a result, a routine crash case can be filed without one.
This does not mean expert testimony has no place in a crash case. Accident reconstruction specialists, medical experts, and others are often used at trial to explain speed, causation, or injuries. The distinction is between using an expert as the case develops, which is common, and the separate procedural rule that requires an affidavit at the moment of filing, which is reserved for malpractice and product claims. A crash case that included a product-defect theory against a manufacturer could trigger the affidavit requirement for that portion. When the requirement does apply and a plaintiff fails to meet it, the claim can be dismissed, which is why the line between ordinary and professional negligence is sometimes contested when it is unclear.