Abstract: A restraint safety device. A chest clip is slidingly attached to a first shoulder strap and a second shoulder strap. The chest clip includes a first chest clip half removably attached to a second chest clip half. A child resistant lock prevents a child from inadvertently detaching the first chest clip half from the second chest clip half In a preferred embodiment the child resistant lock includes a squeezable threaded cap that locks the first chest clip half to the second chest clip half and is removable by an adult when squeezed and turned. In another preferred embodiment the child resistant lock includes a cover lock that locks the first chest clip half to the second chest clip half via prongs and is removable when an adult squeezes the prongs and lifts the cover lock. In another preferred embodiment the child resistant lock includes a cap that covers a press release button.