What does OPSB stand for?

What does OPSB mean?

OPSB	Orbiter Processing Support Building Governmental » NASA
OPSB	Ouachita Parish School Board, Monroe, Louisiana Community » Schools
OPSB	Open Proxy Scanning Bot Computing » Networking
OPSB	Office of Personnel Services and Benefits Governmental » State & Local
OPSB	Old Puget Sound Beach Community
OPSB	Ohio Power Siting Board Governmental » State & Local
OPSB	Orleans Parish School Board Community » Schools
OPSB	Sibi, Pakistan Regional » Airport Codes