The Championships are 'open' class: any boxer who is registered with a club registered with England Boxing aged over 17 years by the 1 October can enter. In three additional weight categories were introduced taking it to 8 weight categories in all. The following year in the ABA decided to introduce eliminating rounds and the Country was split into four Regions to assist in identifying a champion. By , the ABA Championships became a purely English affair as Scottish and Welsh boxers could no longer compete due to disagreements over rules and regulations. So today a total of eleven weight categories are contested. From until the Championships were held at the Wembley Arena.
The Amateur Boxing Association collection boasts 22 bound ABA minute books that date back to the founding of the association in providing a rich insight into the amateur sport. There are also papers relating to other meetings and commissions including selection committee minutes, adjudication minutes, the Women's Commission and the Youth Commission. There are papers and correspondence relating to the organisation and administration of tournaments both domestic and overseas, liaison with regional associations, the training of coaches, awareness programmes and membership.
England Boxing , known until as the Amateur Boxing Association of England ,  is the governing body of amateur boxing clubs in England. There are separate organisations for Scotland and Wales with boxing in Northern Ireland being organised on an All-Ireland basis. The Association was founded in In it organised the first ABA Championships the following year.