Bulkhead-to-Bulkhead A bulkhead-to-bulkhead inventory is a physical count of all the material aboard a ship or within a specific storeroom. A bulkhead-to-bulkhead inventory of a specific storeroom is conducted when a random sampling of that storeroom fails to meet the inventory accuracy rate of 90 percent. Specific Commodity Inventory The specific commodity inventory is a physical count of all items under the same cognizance symbol or federal supply class (such as 6515/6505), or that support the same operational function (e.g., bandages, IV fluids, needles, etc.). Special Material Inventory A special material inventory requires the physical count of all items that, because of their physical characteristics, costs, or other reasons, are specifically designated for separate identification and inventory control. Special material inventories include but are not limited to stocked items designated as classified or hazardous. Physical inventory of such material is required on a scheduled basis, as prescribed in the NAVSUP P-485. Medical supplies are examples of both the specific commodity and special material inventories. Spot Inventory A spot inventory is an unscheduled type of physical inventory to verify the existence of a specific item. It is usually conducted when a requisition is returned showing the item is not in stock but the stock records indicate the item is on hand. A spot inventory is also conducted when directed by higher authority or when a specific item has been found to be defective. Velocity Inventory A velocity inventory is based on the premise that the faster an item moves, the greater the room for error. This type of inventory is required on items with a relatively high turnover rate. Random Sampling Inventory A random sampling inventory is considered to be part of the annual scheduled inventory program. It is done to measure the stock record accuracy for a segment of material on hand. INVENTORY PROCEDURES Proper inventory procedures mandate a complete and correct item count. You must ensure that the total quantity of each item is determined as accurately as possible. Keeping in mind that inventories are conducted to bring stock and stock records into agreement, you can see the importance of a complete, accurate, and legible inventory. Documents authorized for conducting inventory counts of stock material include NAVSUP 1075 (whether or not maintained as locator records) and machine or manually prepared listings. Copies of Stock Record Card, Afloat, NAVSUP 1114, even when maintained in storerooms, are not to be used as inventory count documents. Promptly upon completion of the physical inventory and before matching inventoried quantities against stock record balances, review the inventory documents to ensure that  all items scheduled for inventory have been counted or verified as nonexistent,  quantities counted are legibly recorded and compatible with related units of issue,  all locations applicable to the inventory segment have been checked,  “added” items are adequately identified and legibly recorded,  items are documented in National Item Identification Number sequence, and  documents are dated and initialed. RECONCILIATION OF COUNT DOCUMENTS AND STOCK RECORDS Upon completion of the physical count and review of the count documents (documents with the actual numerical count of the items), the next step in the inventory process is to reconcile count documents with the stock records. This is done to determine if a difference exists between the physical count and the amount recorded on stock records. When the count documents are correct and complete, compare them, item by item, with the applicable stock records to determine whether differences exist. If no differences exist, post the matched count cards or items in the inventory listing to 13-16