BOS 103:2005
Pre-cast cocrete kerbs
Licence No : SM/10-01
Valid from 15 February 2010
Expires on 14 February 2013
BOS 73:2004
Cocrete non-pressure pipes of SC Type and SI Type
Licence No : SM/04-01
Valid from 10 November 2010
Expires on 09 November 2013
BOS 74:2004
Pre-Cast reinforced cocrete culverts of classes 50S, 75S and 100S
Licence No : SM/04-02
Valid from 10 November 2010
Expires on 09 November 2013