Must manufacturers warn about safer product alternatives? Slisze v. Stanley-Bostitch Explained

In product liability cases, plaintiffs sometimes argue that manufacturers should be liable not only when products are defective, but also when they market non-defective products while safer alternatives exist. The Utah Supreme Court’s decision in Slisze v. Stanley-Bostitch definitively rejects this theory.

Background and Facts

Slisze sustained head injuries when a nail from a pneumatic nailer ricocheted and struck him. The nailer was a “contact-trip” model that could discharge nails regardless of trigger sequence, unlike the manufacturer’s safer “sequential-trip” model that required specific operation sequence. Slisze sued Stanley-Bostitch for negligence and strict liability, arguing the manufacturer negligently marketed the less safe model when a safer alternative existed.

Key Legal Issues

The court addressed whether Utah’s products liability statute precludes negligence claims, whether manufacturers have a duty to discontinue marketing non-defective but less safe products, and whether OSHA standards constitute “government standards” under Utah Code Ann. § 78-15-6(3).

Court’s Analysis and Holding

The court held that Utah’s products liability statute does not subsume all negligence claims, but manufacturers have no duty to refrain from marketing non-defective products when safer models exist. Applying the AMS Salt Industries factors for determining duty, the court found that imposing such a duty would be unduly burdensome and might discourage safety innovation. The court also approved using OSHA standards as evidence of government standards to establish a rebuttable presumption of non-defectiveness.

Practice Implications

This decision establishes important boundaries for products liability negligence claims in Utah. Practitioners cannot rely on the mere existence of safer alternatives to establish manufacturer duty or liability. Instead, negligence claims must focus on traditional duties such as warning of latent defects or manufacturing non-defectively. The decision also confirms that OSHA standards provide reliable evidence for the statutory presumption under Utah Code Ann. § 78-15-6(3).