According to Bill Ricker, N1VUX, the section Field Day pages offer detailed information on individual field day club operations along with the complete event operating rules and helpful safety tips.
“Clubs which are reactivating a previous Class A or F site can confirm to the EMA Directory by simply putting their pin in at the ARRL Locator – conveniently linked from our directory. I’ll pick that up and mark them confirmed. I would appreciate an email from new clubs in Class A or F, clubs with new sites, clubs whose details on their EMA directory need updating, or who are definitely not using the site they had last year. Email n1vux at his arrl.net address.