Central Applications Board Wikipedia
The Central Applications Board provides a single point of registry for those wishing to undertake the Common Professional Examination/Graduate Diploma in Law and Legal Practice Course in England & Wales. It is administered by the Law Society of England and Wales. Applicants are allowed to select up to three institutions (and up to three campuses within each institution) based on order of preference. The Board also maintains a list of the number of positions available at each institution for the year (allowing students to see the size of each prospective programme and provider). Once an application has been received it is then sent to the prospective institutions who judge each student by their own criteria and respond individually (rather than through the Board).
Applications for Barrister and Legal Executive education/training are handled separately as they are the responsibility of the Bar Council and Institute of Legal Executives, not the Law Society.