Operations and Maintenance Procedures are required at bulk plant locations by chapter 15 of the LP-Gas Code. You may download the Operations and Maintenance Handbook at the Propane.com website. A site-specific O&M procedure must be in effect for a site before it goes into operation. You should show only those procedures that will be performed at that site in the operation procedures for that site. Employees and contractors must be trained on these procedures. Any maintenance performed must be logged (date performed and signature/initials) on the maintenance checklist by someone appropriately trained.