The Uptime Institute today announced it has incorporated the Owners Advisory Committee’s (OAC) first recommended modification into the data center Tier Classification System. The OAC is composed of 29 data center owners who provide oversight and guidance to ensure the Uptime Institute’s Tier Standards continue to be useful to data center owners and operators. The Tier Classification System is the international standard for objectively evaluating a data center’s performance capability in respect to its business requirements.