The objective of WP 2 is to analyse the potential use of reclaimed asphalt (RA) in new asphalt surface layer mixes including the use of penetration grade and polymer modified binders (PmB’s). In lower asphalt layers the use of high quantities of RA is common in most European countries. In surface course layers this occurs less frequently due to the high demands on the surface course. Much of the existing practice has been to recycle the surface course layer but generally it is included into a lower pavement layer and this does not make the optimum use of the premium aggregates and perhaps polymer modified binder present in the surface course layers. Re-using the RA into the surface course layer reduces the demands for high quality virgin aggregates and added binder which can then be preserved for future generations. Sub-task 2.3 of Work Package 2 covers field validation and has monitored sites where significant proportion of RA has been incorporated in new asphalt surface course layers. The task objective was to determine whether the inclusion of RA in a designed mixture would affect its medium term performance. This report covers the performance RA sites monitored which include both plant mixed RA sites (with and without polymer modified binder); and in situ hot recycling sites. The performance of sites is compared with control sections where no RA has been used.