No later than 31 December 2004 the Commission shall submit to the European Parliament and the Council a report based on the experience acquired in the application of this Directive and, in particular, on the results of the most recent scientific research concerning the effects on human health, paying particular attention to sensitive populations, and on ecosystems of exposure to benzene and carbon monoxide, and on technological developments including the progress achieved in methods of measuring and otherwise assessing concentrations of benzene and carbon monoxide in ambient air.
Najkasneje 31. decembra 2004 Komisija predloži Evropskemu parlamentu in Svetu poročilo, ki temelji na izkušnjah, pridobljenih pri uporabi te direktive, in zlasti na rezultatih zadnjih znanstvenih raziskav o učinkih izpostavljenosti benzenu in ogljikovemu monoksidu na zdravje ljudi, pri čemer se posebna pozornost posveti občutljivemu prebivalstvu, in na ekosisteme, ter na tehnološkem napredku, skupaj z napredkom, doseženim pri metodah merjenja in drugačnega ocenjevanja koncentracij benzena in ogljikovega monoksida v zunanjem zraku.