What is the requirement for the original copy of the contractor's material and test certificate?

• A. It must be mailed to the owner after installation.
• B. It must be archived at the state records office.
• C. It must be kept at the owner's files.
• D. It must be kept at the site after completion of the installation.

Answer: (D)

The main concept here is keeping essential verification documentation in a place where it’s immediately accessible after a sprinkler installation. The original material and test certificate records exactly what materials were used and that the required tests were completed, so having that original copy kept at the job site after completion allows inspectors and the building owner to review it on-site or reference it for any future work. This on-site retention reduces the risk of loss or delay that could happen if the document were mailed to the owner or filed elsewhere, and it’s not typically required to archive it with state records. So, the requirement is to keep the original copy at the site after completion of the installation.