The ESAA fields National teams in the Schools International Athletics Board (SIAB) competitions which involve England, Scotland, Wales, and Northern Ireland.
Cross Country teams are selected at Junior (Under 15) and Intermediate (Under 17) levels. The Track & Field team is for Intermediates only (Under 17).
Teams are selected during and immediately after the National Championships, and the successful athletes are informed at those Championships.
Combined Events teams are usually selected for the Indoor Combined Events Pentathlon from the ESAA Combined Events Championships where four athletes in the Junior and Intermediate age groups compete.