e framework of assessment, care planning, intervention and case review that must be followed by local authorities to plan the support they will give to prepare 16 and 17 year olds for the time when they will not be looked after. 1.3. The main aim of the Care Leavers Regulations and of this guidance is to make sure that care leavers are provided with comprehensive personal support so that they achieve their potential as they make their transition to adulthood. 1.4. The information in this guidance builds on the evidence base that has been developed over the last ten years as to what constitutes good professional practice in working with care leavers, to provide them with the stability and support necessary so that this group of vulnerable young people achieve positive outcomes 2. 1.5. This guidance would not have been possible without the work of professionals from all agencies across England who have given their dedication and commitment to listening to the voices of care leavers and providing the support they need. 1 S.I. 2010/2571 2 Stein, M (with data annexe by Morris M) (2010) C4EO Knowledge Review 3: Increasing the number of care leavers in 'settled, safe accommodation’ (September ).http://www.c4eo.org.uk/themes/vulnerablechildren/careleavers/files/increasing_care_leavers_in_s afe_accommodation_full_knowledge_review.pdf 8 Context 1.6. The Children (Leaving Care) Act 2000 introduced new requirements on local authorities to plan for looked after children so that they have the support they need as they make their transition to the responsibilities of adulthood. Since 2001 the trend to discharge young people from care prematurely when they are as young as 16 has been reversed and many more care leavers now live in suitable accommodation when they are no longer looked a