Unless otherwise provided, they shall cease to be valid at the end of the second 6-month period following the first 6 months after their introduction.
Mura bhforáiltear a mhalairt, scoirfidh siad de bheith bailí ag deireadh an dara tréimhse sé mhí tar éis na chéad sé mhí tar éis iad a thabhairt isteach.