Office of Information and Technology–Infrastructure Standard for Telecommunications Spaces (ISTS) Version 4.0 (OIT document, with Appendices)  

Infrastructure Standard for Telecommunications Spaces (OIT document / Primary telecommunications reference for data center specifications and design templates) (PG-18-12 Chapter 232)

The Infrastructure Standard for Telecommunications Spaces (ISTS) serves as the master reference document of criteria for Department of Veterans Affairs (VA) facility Information Technology (IT) support infrastructure. It defines the technical requirements necessary to maintain optimum reliability and efficiency within VA facilities and computing centers.