Thus, appropriate measures should be taken in order to make sure that systems, components or separate technical units which can be fitted to vehicles, and which could significantly impair the functioning of systems that are essential for environmental protection or functional safety, are subject to prior control by an approval authority before they are placed on the market, registered or are entered into service.
Dá bhrí sin, ba cheart bearta iomchuí a ghlacadh chun a áirithiú go mbeidh na córais, na comhpháirteanna nó na haonaid theicniúla ar leithligh is féidir a fheistiú ar fheithiclí, agus a d’fheadfadh dochar mór a dhéanamh d’fheidhmiú na gcóras atá riachtanach ó thaobh cosanta comhshaoil nó sábháilteachta feidhmiúla de, faoi réir rialú roimh ré ag údarás ceadaithe sula ndéantar iad a chur ar an margadh, a chlárú nó a chur i seirbhís.