OH HB605

Codifies the Spearin doctrine into Ohio law by creating section 4113.63 of the Revised Code, establishing an implied warranty that plans and specifications provided by project owners are full, accurate, defect-free, and sufficient for project completion

Shields contractors and subcontractors from liability for damages when they precisely follow owner-provided plans and specifications, rely reasonably on those plans, and damages result from defects or insufficiencies in the plans

Defines circumstances where contractor reliance is not reasonable: when plans are clearly inadequate, when a reasonable pre-site inspection would have revealed the defect, or when the contractor did not act in good faith

Preserves implied warranty protections even when contracts require contractors to conduct site visits and assume responsibility for work until completion and acceptance

Voids as against public policy any contractual clause entered into after the effective date that attempts to waive or circumvent these protections