I know SGWiki people prefer to call overnight parking as BP, but
just for reference sake, GYDEP is for Lorong 1 Geylang, BPDEP is
for Bukit Panjang, BBDEP is for Bukit Batok, SEDEP is for
Sembawang, YIDEP is for Yishun, CCDEP is for Choa Chu Kang.
And, to correct some of the stuff here,
TIB450S is not a WLDEP 961. Still WLDEP SP.
TIB889K is WLDEP 971E, not WLDEP 963 anymore.
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The short forms you mentioned above is as though bus
interchanges are like depots, not bus parkings. There is no such
SMRT depots in Singapore, that's why it is changed to BP
instead.
I shall edit the corrections.