More recently, and in response to a request from the Minister for Transport, the NRA and Dún Laoghaire-Rathdown County Council have developed a set of supplementary proposals that will achieve the dual objective of preserving extensive areas of the historic and archaeological site at Carrickmines while at the same time allowing construction of the south eastern motorway section of the M50 to proceed on schedule. Furthermore, a long-term management plan for the portion of the castle to be preserved in situ is to be discussed and agreed between Dúchas and Dún Laoghaire-Rathdown County Council. I emphasise that the NRA has committed to a code of practice with my Department for the mitigation of archaeology on national road projects.