The ALSPAC executive plan to move towards more open access collaboration in the future and details of this will appear on the website. It is likely that access to genetic (particularly GWAS) and molecular data will have some supported access rather than being completely open access. The access requirements and use of external data collected through record linkage will be determined by the contractual agreements ALSPAC has with the data owners. Access to these linkage data will be supported by ALSPAC.