Tom, when you become an AACA member you will get an activity sign up sheet/card in with one of your monthly magazines. I can't remember which month it usually comes. You would need to sign up for spaces and mail that in before some deadline I believe in August. You would not know which field your spaces will be in until they mail you your stickers, etc. If you are not happy with the space location, you can request a space location change for the following year. Another option you would have that does not require joining the AACA would be to find someone willing to lease you some of their spaces. This is frowned upon by the AACA but I know many folks who do this.