assistance modules (MAMs) and ready service spares (RSSs) are located in the appropriate operating and maintenance spaces under the sub- custody of the operating or maintenance personnel. RESPONSIBILITY The supply officer is responsible for the storage, security, and inventory control of all stock material in his or her custody. Although stock levels should be stored in supply department storerooms or spaces, it may be necessary to store bulk consumables such as lumber, metal, and pipe or certain repair parts in spaces under the control of other department heads. If it is necessary to store material in other department spaces, the supply officer will obtain the commanding officer’s written authorization for such storage. STORAGE OF PERSONAL GEAR No personal gear (regardless of whose it is) may be stored in supply department storerooms without written approval of the commanding officer. LOST, DAMAGED, OR DESTROYED MATERIAL Personnel assigned the responsibility for physical custody of stock material must report any damage, deterioration, or shortage to the supply officer immediately. The custodian will not be held responsible for material lost, damaged, or destroyed as a result of fire or flooding, providing the emergency did not arise from that person’s negligence and provided that all reasonable steps to prevent the loss or damage were taken. SECURITY OF MATERIAL Material in store must be kept under lock and key in all cases except when the material is of such quantity or dimensions as to make storeroom storage impractical. Storeroom spaces must be locked securely when not in use. When the spaces are open for use, an authorized person must always be present. Other persons will be admitted only when necessary for the storage or breakout of material or in situa- tions discussed in the following paragraphs. Inspection of Spaces Personnel may be allowed access to storage spaces for purposes of inspection and as directed by the commanding officer. However, such per- sonnel may not be given keys for the spaces, but will be escorted by responsible persons as directed by the supply officer. Access for Damage Control Access to storage spaces may be authorized to damage control personnel in the performance of their duties. Storage spaces must be secured in such a manner that access by use of ordinary damage control equipment is not obstructed in an emergency. Permission for Entry Permission for entry to supply storage spaces of personnel not ordinarily authorized access will be granted only by the supply officer or, in his or her absence, the commanding officer, executive officer, or command duty officer, as appropriate. MATERIAL SURVEYS Material survey is a procedure for determin- ing the cause of gains, losses, or damage to Navy property, establishing personal responsibility (if any), and documenting necessary inventory ad- justments to stock records. The procedures discussed in this section are used when possible survey action is indicated. When an inventory adjustment and preliminary research cannot resolve the discrepancy, the accountable and responsible individuals initiate a detailed review of the circumstances surrounding the possible adjustments (known as causative research). A Report of Survey, DD Form 200, is prepared and forwarded to the appropriate survey officials. When the report of survey is for stock material, the inventory adjustments are entered into SUADPS-RT via the survey adjustment function only after approval of the survey. SURVEY REQUIREMENTS When a loss or gain of material in the follow- ing categories is confirmed, a Report of Survey, DD Form 200, is prepared. 3-19