The purpose of the Guarding Readiness Resources Act is to clarify how funds received by the National Guard Bureau from states as reimbursement should be handled. The main objective is to ensure that these funds are properly credited and utilized for specific purposes related to the maintenance and operation of National Guard units. The key provisions of this act state that any funds reimbursed to the National Guard Bureau by states, territories, or the District of Columbia must be credited to the appropriate account that incurred the expense.