An apparatus and method for gripping containers, each having a circumference, for dumping material in a material collection vehicle including more than one gripping mechanisms, wherein each of the gripping mechanisms can engage a container around at least one-half of the circumference of the container. In one embodiment, the gripping mechanism is attached to a base member and includes an outer gripping member pivotally attached to the base member and an inner gripping member pivotally attached to the base member and an actuating mechanism for moving at least one gripping member toward the other gripping member.