a description of the functioning of the gas system at national level, including infrastructure (to the extent not covered by point 1.1(b)).
tuairisc ar fheidhmiú an chórais gás ar an leibhéal náisiúnta, lena n-áirítear bonneagair (sa mhéid is nach bhfuil seo cumhdaithe faoi phointe 1.1.(b)).