The purpose of this article is to review the Commission's 'Fit for 55' package. It first summarises the Commission's proposals as succinctly as possible. It then analyses what is likely to be the collective impact of the package as a whole on specific sectors, and particularly on citizens and industry, as consideration of each proposal in isolation will not enable this. It finally draws some conclusions, identifies where and why some elements may be difficult for the Council and Parliament to agree to and suggests some possible areas of compromise.