Valobra guarantees that its chandeliers follow the ancient processing of Venetian handblown glass. Each chandelier arrives with a certificate of authenticity which carries the date of manufacture, the name of the client and the name of the maestro. Valobra guarantees also that all its lighting satisfies the current US and Canadian directives through their CSA US certification. The CSA mark demonstrates to our customers, whether they are consumers, retailers or end users, that a sample of the product has been certified to applicable standards including standards written or administered by the American National Standards Institute (ANSI), Underwriters Laboratories (UL), CSA Group (CSA), NSF International (NSF), and other North American and global organizations. Csagroup.org