Yesterday and today, interchange tour on every SBST Bus Int.
Hougang Central, Punggol, Bedok, Eunos, Clementi, Jurong East, Boon Lay, Bukit Merah, HarbourFront, Serangoon, Toa Payoh, Bishan, Ang Mo Kio have Service Guides.
Sengkang and HarbourFront guide rack had a Transit Security hiding (Guarding Svc 80 guide?

but 80 no guide on Sengkang...) Sengkang - hiding behind the guide rack and the flag early poster. HarbourFront - hiding behind the wall rack.
Sengkang, Pasir Ris, Tampines currently do not have guides

.
Punggol had a lot of crumpled(wet to dry)/folded/both Svc guides

.
Toa Payoh DO NOT have guide rack, you may want to collect your guides at other Interchanges except for Svc 90, 142, 159. They are occupied by the shops.

Bishan Svc guides had the Bus Fare increase card (Staple) attached and a cross mark on the Fare and the example on every Svc guides except for Svc 56

. I end up collecting a lot of 'New Fares' Card with holes(I got 20) and having guides with holes. Do the all Svc 50s Bishan Interchange have so much time to do this?
Hougang Central Int DO NOT have FFW 74e and 151e Promo.Hougang Stn do have 'Guide - Issue 02' but they are stapled with 'New Fare' Card.
Ang Mo Kio only have 'Guide - Issue 01' available, no Svc Guides

.
Eunos svc 93 and 154 are old guide. ((93)15 Sept 2004, (154)15 Jan 2005)
A lot of interchanges svc guides had half folded mark

.
SBS 91(6/8 )1 Z, Svc 76, no guide.
I only spot Transit Security on Sengkang and HarbourFront but not other interchanges.
Aircon interchanges currently DO NOT have guides.