The reference establish the system used to publish all training standards, provide policy, and assign training responsibilities, especially as applied to the System Approach to Training (SAT). ITSs provide a common base of training for all Marines who have the same MOS. They provide the basis for the SAT of all individual training. ITSs are to be used by institutional Marines, to establish training plans and courses of instruction, and to maintain a progressive and systematic method to monitor training impacts on Individual Career Development Plans. ITSs are derived from Mission Performance Standards which come from combat requirements of the Fleet Marine Forces Changes to doctrine, force structure, and the introduction of new weapons and equipment will require revision of this order on a regular basis.