 By August they had received replies from 80 of 83 county boroughs and 42 of 61 county councils, stating they were seeking boundary reviews.Acting on the information they had received, the Commission prioritised the review of areas into two categories, "A" and "B".Reviews of areas in category A were to proceed as soon as possible, while the review of category B areas would be held back until July, 1947 (except where they would affect the boundaries of areas in category A).