To achieve an indoor classification, archers need to shoot and score any three indoor rounds and submit them to the records officer, who will then award the classification at the end of season. If you submit more than three scores, your best three will be used to calculate the classification for that year. Barebows and longbows fall under the recurve category and you can hold different classifications for each bow-type you shoot.
e.g. A senior lady shoots recurve and puts in the following scores, Portsmouth (501), Portsmouth (550) & , Worcester (235) this equates to Portsmouth (501=D), Portsmouth (550=C), Worcester (235=D) so this lady may claim D classification.