Falling Acorn Liability Task Force Rules Homeowners Responsible for Acorn-Dented Car Roofs

OAKDALE — The Falling Acorn Liability Task Force issued its landmark ruling Thursday: homeowners are responsible for acorn damage to vehicles parked beneath their oak trees, ending years of what the task force called “shoulder-shrugging under the canopy.”

The ruling establishes a three-tier acorn liability system. Tier 1 (occasional drops, under 50 acorns per day): homeowner must post a “PARK AT OWN RISK: NATURE” sign. Tier 2 (50–200 acorns daily): homeowner must offer to move the vehicle or provide “a car cover of reasonable quality.” Tier 3 (over 200 acorns daily, designated “aggressive shedding”): homeowner is liable for dent repair up to $500 per incident.

“An acorn falls at roughly 30 miles per hour from a 60-foot oak. That is not a nut; that is a projectile with a marketing problem,” said task force chair Judge (ret.) Harold Finch, who was inspired to form the panel after his own sedan sustained 14 dents in a single October week. “My roof looked like a golf ball. A golf ball with a windshield.”

Arborists objected, noting homeowners cannot control masting cycles — the periodic bumper crops oaks produce every few years. “You might as well hold people liable for rain,” said arborist Dana Cole. Finch was unmoved: “Rain doesn’t dent. Next question.” The task force did exempt “acts of squirrel,” ruling that acorns deliberately dropped by squirrels constitute “wildlife behavior beyond reasonable homeowner control, and frankly impressive aim.”

Insurance companies have 90 days to update policies. One major insurer has already added an “acorn rider” for $4 a month, which Finch called “the most honest $4 in the industry.”

The Tier 1 “PARK AT OWN RISK: NATURE” signs are already appearing under Oakdale’s oaks — available free at Town Hall, where Finch personally hands them out “with the gravity of a man distributing weather warnings.” Tier 2’s “car cover of reasonable quality” standard has generated the most questions: “A bedsheet is not reasonable. A tarp with bungee cords is borderline. A fitted cover is the gold standard,” Finch clarified. “We will know reasonable when we see it, which is how most of tort law works, frankly.”

The $4-a-month acorn rider — “the most honest $4 in the industry,” per Finch — sold 2,000 policies in its first week, and two competing insurers have announced their own nut-fall endorsements. Cole, the arborist, remains opposed but conceded the ruling’s one bright spot: the “acts of squirrel” exemption. “A homeowner in Tier 3 hired an arborist to testify that the dents were ‘squirrel-directed,’” she said. “The task force reviewed the footage — a squirrel dropping acorns onto a parked car with what I can only describe as intent — and ruled it an act of squirrel. The homeowner was cleared. The squirrel, I’m told, showed no remorse.”