authorization to assign blocks of serial numbers for different classes of material. Some examples of these material classes are aviation repairable items, ordnance, and food. Activities authorized to assign blocks of numbers will have this segment subdivided to include separate sections for each material class. The serial numbers in each section run consecutively throughout the fiscal year. As a minimum, the expenditure record log will contain the following information: Expenditure document number Expending department Material disposition Material identification Remarks EXPENDITURE FILE This file contains the original copies of transaction documents processed by the activity. If the original is not available, the activity may use a copy of the transaction document. The transaction documents referred to in this section are the forms used for each transfer, cash sale, or survey. The sequence for filing the invoices is Julian date and serial number sequence. The retention period of the expenditure invoice file is 3 years after completion of the expenditure transaction. MATERIAL ISSUES The term issue means the process of expending material in response to a requisition from a user, supported unit, or activity. Refer to issue processing procedures described in NAVSUP Publication 1, Volume 2 (shore), and NAVSUP Publication 485 (afloat). For mechanized activities, refer to the publications and system procedures set. Issues Ashore Naval air stations and other stations under the management of Naval Air Systems Command (NAVAIR) use MILSTRIP for internal procedures. The Naval Aviation Maintenance Program (NAMP) procedures are also mandatory at naval air stations. Document processing of material issues at supply departments ashore generally follows the preposting method. However, supply departments may establish the postposting method for issuing material in direct support of a weapons system. This method is necessary to meet the time frame for processing requirements. The chronological order of requisition processing procedures ashore may vary among supply activities. For example, mechanized processing involves different organizational areas than does manual processing. The processing of onstation issues by using the requestor’s requisitions differs from the processing of offstation requisitions. Receipts from offstation may be on DD Form 1348-1, DD Form 1348-1A, or other shipment documents. The processing and routing of requisitions also depend on the setup of the supply organization. Some supply departments carry material in stock while others get material support from the nearest stock point. Supply departments that have material in stock route copies of requisitions to either the issue control branch or the stock control branch. The issue control branch reviews the requisitions for proper MILSTRIP format and determines the internal handling precedence. When necessary, the issue control branch may provide expediting services to quicken the processing. The issue control branch also monitors the flow of issue documents through the issue process and furnishes status to requisitioners. This branch also maintains the requisition history and status file and serves as liaison between the supply department and its customers. In screening the requisition, the issue control branch checks for proper format, completeness of required data, and proper authority. This branch also determines the necessity for special handling. After the screening process, the issue control branch forwards the requisition to the stock control branch for further processing. The issue control branch may return requisitions that have errors to the originator for resubmission. In some cases, the issue control branch can correct the errors on the requisition. The action taken in handling erroneous requisitions depends upon the circumstances and local policy. For example, issue control cannot ensure the correct data to use for the missing information on a requisition. The issue control branch should return the requisition to the originator for correction. When possible, issue control may contact the originator for the required data to correct the requisition. Upon receipt of the requisition, the stock control branch ensures that copies of request forms are intact. The form used may be the DD Form 1348 (6 pt) or DD Form 1149. (For automated activities, refer to the user’s manual.) The stock control branch determines the supply action to be taken on the requisition. If all material is to be issued from stock, stock control sends copies 2, 4, 5, and 6 of DD Form 1348 or 1149 to the storage branch. Copies 7 and 8 of DD Form 1149 may be used locally or destroyed. If the entire requested quantity is issued from stock, the storage branch can discard copy 2. After completing the issue from stock the issue control branch retains and files the proof of delivery copy. 7-2