This specification covers material, design, fabrication, and testing requirements for vertical, cylindrical, aboveground, closed and open top, bolted steel storage tanks in various standard sizes and capacities for internal pressures approximately atmospheric, not to exceed those listed in Section 4.1. This specification is designed to provide the oil production industry with safe and economical bolted tanks for use in the storage of crude petroleum and other liquids commonly handled and stored by the production segment of the industry. This specification is for the convenience of Purchasers and Manufacturers in ordering and fabricating tanks. NOTE See Annex C for a list of items that should be specified by the tank Purchaser and conveyed to the tank Manufacturer. See Annex D information related to the API Monogram program for tank Manufacturers.