When, pursuant to articles L. 2123-12, L. 3123-10, L. 4135-10, L. 7125-12, L. 7227-12 of this code or article L. 121-37 of the New Caledonian Municipalities Code, a training course is financed both by the fund for the individual right to training of local elected representatives and by the territorial authority or the public establishment for inter-municipal cooperation with its own tax system within which the elected representative sits, the proportion of the educational costs of the training course financed by the fund for the individual right to training of local elected representatives may not be less than 25%.