where countries have currencies which are not quoted on official foreign exchange markets or where the trend in such currencies is likely to create distortion in trade.
i gcás ina bhfuil airgeadraí ag tíortha nach bhfuil luaite ar mhargaí airgeadra oifigiúla nó i gcás inar dócha go mbeadh saobhadh trádála ann de bharr threocht na n-airgeadraí sin.