A/RES/55/199 regional and international organizations, including financial institutions, and for contributions from and the active participation of major groups, as identified in Agenda 21; 20. Welcomes the establishment of a trust fund, urges international and bilateral donors and other countries in a position to do so to support the preparations for the ten-year review through voluntary contributions to the trust fund and to support the participation of representatives of developing countries in the regional and international preparatory process and the Summit itself, and encourages voluntary contributions to support the participation of major groups of developing countries in the regional and international preparatory processes and the Summit itself; 21. Invites the Secretary-General to submit a progress report on the state of preparations for the Summit for consideration by the General Assembly at its fiftysixth session, taking into account, inter alia, the inputs of the various regional meetings; 22. Decides to include in the provisional agenda of its fifty-sixth session, under the item entitled “Environment and sustainable development”, the sub-item entitled “Implementation of Agenda 21 and the Programme for the Further Implementation of Agenda 21”. 87th plenary meeting 20 December 2000 6