Abstract: A fiber optic splice tray having a first side for connecting optical fibers, and a second side for splicing optical fibers is disclosed. The splice tray is removably mountable to a base of an optical fiber distribution box in such a way that the fiber optic cables remain connected at the first side when the splice tray is removed from and mounted to the base. In this way, splicing of optical fibers in the fiber optic cables may be conveniently performed outside of the optical fiber distribution box without disturbing the interconnections of the fiber optic cables. When the splicing is completed the splice tray, with the fiber optic cables interconnected, may be re-installed in the box. A passage allows optical fibers to pass between the first side and the second side. The splice tray is reversibly mountable in that either side of the splice tray may be mounted towards the base. The box has a cover that removably attaches to the base and over the splice tray.