County Championships are organised by County Associations across England. You can compete at your County Championships if you were born in that county, have resided there for a specified amount of time or meet other conditions your county allows for.
For many counties, the track and field championships provide opportunities for those athletes wanting to be selected for their county at the England Athletics AAA & UK CAU Senior Champs.
England Athletics also has a scheme where county associations can apply for grants to help support them with improving the quality of their championships. This fudning can help with resources such as electronic timing and electronic distance measurement.