STP
Description
Surface Transportation Program; Sewage Treatment Plant
SS
Description
Suspended Solids
SPO
Description
State Planning Office
SPCC
Description
Spill Prevention, Containment and Countermeasure
SOP
Description
Standard Operating Procedures
SOLINET
Description
Southeastern Library Network
SMSA
Description
Standard Metropolitan Statistical Area
SLA
Description
Special Libraries Association
SGPB
Description
Southern Growth Policies Board
SFMO
Description
State Fire Marshal's Office