All bulk plants, industrial plants, marine terminals, refrigerated, and pipeline systems are required to have written operating and maintenance instructions. These documents need to be located at the plant they were written for. If the plant is an unattended plant, they may be kept at the overseeing plant location, and must be available to operators, contractors, and inspectors. It is required that the documents are kept current, and kept for the life of the plant they describe. Click here for the operations and maintenance manual. Click here for the shortened form version.