My day off today 
.
30052006,
Tuesday
Route 80:
Volvo B10BLE Diesel (SBS 1688K) - route 163
bus based at Hougang Depot (!!!) (and I happened to catch this bus
- took it from Clarke Quay to Bugis)
Route 109: Volvo B10M MKIV Duple-Mestec bodied (SBS 920X) - route
83 bus based at Hougang depot ("SV 82" was written in marker pen at
the front of the interior of the bus, below the "Bus Stopping"
light)
Route 39: Scania
N113CRB O.A.C. version (SBS 39R) - Route 229 bus based at
Bedok North Depot ( 
)
CSS registered SMRT bus deployment report:
Spotted two CSS-registered SMRT buses today, both, if I remember
correctly, on route 980. One of them is CSS 189D. Couldn't see the
registration of the other bus clearly, but it definitely is the
19x-registered one.