The installer certification should be time restricted, so that a refresher seminar or event would be necessary for continued certification.
ba cheart deimhniú suiteálaí a bheith teoranta ó thaobh ama de, sa chaoi go mbeadh athnuachan, i bhfoirm seimineáir nó i bhfoirm imeachta eile, de dhíth le leanúint de bheith deimhnithe.