The opinion was prepared as part of consultations with which the President of UOKiK made the assumptions of the 2007 amendment to uokik. Opinions were prepared by the Working Group appointed by CARS WZ UW. Particular fragments were prepared by: M. Będkowski-Kozioł, A. Jurkowska-Gomułka, D. Miąsik, A. Stawicki, B. Turno, A. Fornalczyk, E. Modzelewska-Wąchal, K. Kohutek, C. Banasiński, M. Bychowska, M. Mrówka, E. Witkowska-Grochowalska, M. Sieradzka, M. Bernatt, T. Skoczek, D. Wolski.
The GR CARS opinion is distinguished by the fact that it includes not only the assessment of changes proposed by the President of UOKiK, but also proposals for changes that are desired, but not included in the assumptions of the amendment.