In Acqua Vista Homeowners Assn. v. MWI, Inc., (2017) 7 Cal.App.5th 1129, the California Court of Appeal, Fourth District, clarified the burden of proof that homeowners must satisfy to prove defects in new construction against materials suppliers. The Court held that under SB 800 (the Right to Repair Act, “RRA”, California Civil Code § 895 et seq.), a material supplier may be held liable for defects in new residential construction if the supplier “caused, in whole or in part, a violation of a particular standard as the result of a negligent act or omission or a breach of contract.”