What army regulation states that after 30 days property automatically falls on your hand receipt?
That is an Army myth. The only way that you assume responsibility for property is by signing for it.AR 710-2 para 2-10. Assignment of Propertya. Responsibility will be assigned and acknowledged in writing for all property recorded in the property book as on hand.This myth is linked to the latter part of para 2-10 that outlines if a sub hand receipt holder is absent for an extended period of time due to hospitalization, TDY, or emergency the commander will appoint an interim sub hand receipt holder to inventory the equipment and sign for it in the person's absence. An inventory must be conducted first and if there are any discrepancies they must be immediately reported to the commander and actions will be in accordance with AR 735-5. The only ways to be relieved from responsibility of property are to sign the property to somebody else, statement of charges, or through a FLIPL. So long story short, if you don't sign for it you are not responsible for it.