Order of Dress
The Infantry Trials and Development Unit (ITDU) based in Warminster, conducted trials with the PLCE webbing system. It had decided for the system to be fit for purpose, and divided the system into three orders of dress:
The Assault Order consists of the very essentials needed to conduct a military task in the theatre of war. Ammunition, the water bottle, the entrenching tool, the bayonet, the helmet, and CBRN (Chemical, Biological, Radiological, and Nuclear) protective clothing (stowed in one of the detachable side pouches of the rucksack) is to be carried on operations and patrols of only short duration.
The Combat Order is the Assault Order in addition to the means of stowage for rations and personal equipment, that enable the British soldier to live and fight for a period of 24 hours. The second side pouch of the rucksack is now carried. In practice, the patrol packs are used by many units and individual soldiers instead of the side pouches, as they are to be found larger in size and more convenient.
The Marching Order is the Combat Order in addition to the carrying of the rucksack (Bergen) and is the fighting load required for operations of up to the duration of two weeks, without means of resupply, except for ammunition, rations and water. The complete Bergen (with side pouches attached) is being carried.