- because not all resistances to PPPs are managed in the same way and that relevant resistance management must take into account the specific characteristics of each case of resistance;
- because it is easier to manage resistance to a PPP when one knows its status in a territory;
- because information on resistances is not always available to resistance managers or is not sufficiently accurate;
the lists proposed by R4P present an updated inventory of cases of resistance to PPPs and their characteristics in metropolitan France, in order to allow a more sustainable use of the common good PPP.