Abstract: A splice closure apparatus for a multi-layer combination ground and fiber optic cable, commonly called an optical ground cable, includes a weather impervious outer cylinder made of an impact and corrosion resistant material. The cylinder is open at both ends and is designed to hold a splicing assembly including a pair of sealing end caps, one for each end of the cylinder. Each end cap includes an elastomeric sealing material sandwiched between two rigid plates bolted together with the bolts extending through the elastomeric material. When the end cap bolts are tightened, the elastomeric material is expanded outward to sealingly engage the outer cylinder. At least one of the end caps includes cable through bores through which cables to be spliced are introduced into the splicing assembly and closure and each of the end cap plates include four cable slots leading from the outside thereof to respective cable through holes in the elastomeric layer.