(58)The resolution college's written arrangements and procedures should include the necessary organisational provisions to ensure efficient and effective decision-making processes. In particular, the resolution college should recognise the need to establish flexible substructures within the resolution college to carry out college functions and ensure that members are able to contribute in an appropriate manner across each of the college's functions. In particular, where it is deemed appropriate that authorities, other than the college members, participate in the college as observers, it is necessary that the group-level resolution authority ensures that the terms and conditions of the participation are set out in the written arrangements and that they are not more favourable than those set out in this Regulation for the members of the college.