Sullivan v. Werner Co. (opinion announcing the judgment of the court)
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In a case brought before the Supreme Court of Pennsylvania, Michael and Melissa Sullivan sued Werner Company and Lowe's Companies, Inc. over a mobile scaffold that collapsed and caused serious injury to Michael Sullivan. The Sullivans claimed the scaffold was defectively designed because it was possible for a user to inadvertently rotate the deck pins off the platform during normal use.
Before trial, the Sullivans filed a motion to preclude Werner and Lowe’s from admitting into evidence any industry or government standards, which the trial court granted. The jury ultimately found Werner and Lowe’s liable for the design defect and awarded the Sullivans $2.5 million in damages.
Werner and Lowe's appealed, arguing that they should have been allowed to present evidence that the mobile scaffold complied with industry and governmental safety standards. The Supreme Court of Pennsylvania affirmed the lower courts' decisions, ruling that such compliance evidence remained inadmissible in products liability cases.
The court applied the risk-utility test, which asserts that a product is in a defective condition if a ‘reasonable person’ would conclude that the probability and seriousness of harm caused by the product outweigh the burden or costs of taking precautions. The court concluded that evidence of a product’s compliance with governmental regulations or industry standards is inadmissible in design defect cases to show a product is not defective under the risk-utility theory because such evidence goes to the reasonableness of the manufacturer’s conduct in making its design choice, not to whether the product was defectively designed.
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