Francis Noel Duffy (Dublin South West, Green Party) | Oireachtas source

On CEM III, which is ground granulated blastfurnace slag, GGBS, cement, my understanding from the State architect, Mr. Ciarán O'Connor, is there is only 18% of it available on the planet because it is a by-product of the steel industry. One would never get 100% CEM III; one would only ever get 20%. We could probably get more because we are a small country, but in this context one is locked in. It is about reducing the use of concrete and using other methodologies of construction.

I refer to Deputy Ó Broin's remarks on post-occupancy testing. There is a system in Australia under which the rating is done one year after occupancy. Many of the corporates are pushing in that regard. It is a six-star system.