All BOP connections subjected to well pressure must be flanged, welded, or clamped Fill-up line installed above the uppermost preventer. BOP open and closing lines with a pressure rate above that of the maximum pressure rating of that of the accumulator maximum pressure and to be steel coated. If a repair or replacement of the BOP is required after testing, the work must be performed prior to drilling out the casing shoe. When the BOP cannot function to secure the hole, the hole has to be secured using cement, retrievable packer or a bridge plug packer, or other acceptable approved method to assure safe well conditions. Minimum standards for choke manifold equipment. All choke lines shall be straight lines unless turns use tee blocks or are targeted with running tees, and must be anchored to prevent whip and reduce vibration. Choke manifold equipment configuration must be functionally. The configuration of the chokes may vary. All valves (except chokes) in the kill line choke manifold, and choke line must be of a type that does not restrict the flow (full opening) and that allows a straight through flow. Pressure gauges in the well control system shall be a type designed for drilling fluid service Minimum standards for pressure accumulator system. 2M system accumulator must have sufficient capacity to close all BOP's and retain 200 psi above pre-charge. Nitrogen bottles that meet manufacturer's specifications. 3M system accumulator must have sufficient capacity to open the hydraulically-controlled choke line valve (if installed), close all rams plus the annual preventer, and retain a minimum of 200 psi above pre-charge on the closing manifold without the use of the closing pumps. "this is a minimum requirement." The fluid reservoir capacity must be double the usable fluid volume of the accumulator system capacity and the fluid level to be maintained at the manufacturer's recommendations. The system must have 2 independent power sources to close the preventers. Nitrogen bottles (3 minimum) may be 1 of the independent power sources and, if so, shall maintain a charge equal to the manufacturer's specifications. 5M and higher system accumulator must have sufficient capacity to open the hydraulically-controlled gate valve (if installed) and close all rams plus the annular preventer (for 3 ram systems add a 50 percent safety factor to compensate for any fluid loss in the control system or preventers) and retain a minimum pressure of 200 psi above pre-charge on the closing manifold without use of the closing unit pumps. The fluid reservoir capacity shall be double the usable fluid volume of the accumulator system capacity and the fluid level of the reservoir must be maintained at the manufacturer's recommendations. Two independent sources of power must be available for powering the closing unit pumps. Sufficient nitrogen bottles are suitable as a backup power source only, and must be recharged when the pressure falls below manufacturer's specifications. Minimum standards for accumulator pre-charge pressure test. This test should be conducted prior to connecting the closing unit to the BOP stack and at least once every 6 months. The accumulator pressure must be corrected if the measured pre charge pressure is found to be above or below the maximum or minimum limit specified below (only nitrogen gas may be used to pre-charge):