MIL-HDBK-503 (TM), DEPARTMENT OF DEFENSE HANDBOOK GUIDANCE FOR PREPARATION OF HAND RECEIPT TECHNICAL MANUALS (-HR). This handbook contains guidance for information only in the preparation of technical manual (TM) hand receipt (HR) publications, covering the line item entry for system/end item and the content of the applicable Components of End Item (COEI), Basic Issue Items (BII), and Additional Authorization List (AAL).