Consistent with that Guidance, the test activities of the Commission, of the type-approval authorities and of the technical services for the purpose of detecting defeat devices should remain non-predictable in character, and should also include modified testing conditions which entail variations in physical conditions and testing parameters.
I gcomhréir leis an Treoir sin, ba cheart gníomhaíochtaí tástála an Choimisiúin, na n-údarás cineálcheadaithe agus na seirbhísí teicniúla chun feistí sáraithe a bhrath, ba cheart gur de chineál neamhintuartha iad, agus go n-áireofaí orthu, freisin, dálaí tástála modhnaithe a mbeidh éagsúlachtaí i gceist sna dálaí fisiceacha agus sna paraiméadair thástála.