War Instructions United States Navy 1944
Chapter 4. Individual Ship Readiness
Section I. Conditions of Readiness
(a) Ships are prepared at all times, at sea and in port, to take effective action against
any possible attack, even by surprise.
(b) Provision is made for adequate rest for all personnel, to the end that they may discharge their various duties efficiently when on watch, accomplish necessary maintenance, and be fit for battle at all times.
(e) There is an equitable division of labor among all members of the ship's company in meeting requirements of the prescribed condition of readiness. To this end, it is expected during condition watches that certain personnel will be assigned to stations other than their regularly assigned battle stations.
401. Rigorous and detailed standardization of battle bills and condition watch bills for each type of ship is not practicable. Standard organization bills and related instructions promulgated by higher authority serve primarily to build a proper and efficient organization, and are so regarded. Consonant with this and the considerations in paragraph 400, definite and detailed conditions are established which cover the readiness of armament, material, engineering, ammunition, aircraft, communications, and other matters as appropriate. These conditions include a highest readiness condition with all hands at battle stations, and other conditions of lesser preparedness suitable to assume in high or low visibility and in consideration of the possibilities of surface, air or submarine attack.
402. The currently effective conditions of readiness are found in appropriate publications. Responsible commanders in prescribing conditions of readiness strive to bring their commands into action at the peak of fighting effectiveness by striking a common sense balance between security and rest.
Section II. Darkening Ship
404. Unless otherwise directed every ship is completely darkened from sunset to sunrise. When a ship is darkened, suitable and frequent inspections are necessary to insure that she is effectively darkened both as viewed from other ships and from aircraft.
406. Smoking and the use of flashlights may disclose the presence of a ship which is otherwise effectively darkened. Suitable measures are taken to prevent these practices on exposed decks or other places from which such lights might be seen by an enemy.
407. When a ship is darkened the ship's bell is not struck to indicate time; bugle calls, band music, and loud speakers are not sounded on the top side, and other noises which might disclose the ship's presence are eliminated. The whistle is used as through the ship were not darkened unless the officer in tactical command directs otherwise.
Section III. Lights
Section IV. Speed Requirements
Section V. Material Casualty
412. If the derangement is not temporary, the commander of the unit gives his immediate superior adequate information to enable that officer to issue appropriate instructions, and further report to higher command, if necessary.
Section VI. Exhaustion of Fuel and Ammunition
414. A ship reports at once to her unit commander if there is probability of exhaustion of the ammunition supply of any battery. As soon as practicable after action, ships report to their unit commander the percentages remaining of ammunition, torpedoes, bombs, depth charges, planes, fuel, speed, personnel, and any other factors affecting performance of the ship.