i have some general questions about the rfid system. if they are going to make it mandatory the all animals leaving the farm be electronicly id'd by jan 1st 2008and possibly all livestock by jan 1st 2009. when you purchase electronic tags from say allflex do you order them and have your premisis id number installed on them from the factory? if you were only going to rfid calves and cows leaving the farm do you really need a reader, and that is my big question is the exact way these tags work, i dont think you can put any info on the tag yourself? so how do you order them? I am just begining to do my homework on this as i really hoped we would never have to do it. dont get me wrong i suppose it is a good thing just something else to worry with. but the usda nais page isnt any help and the allflex page doesnt have an rfid for dummies section so could someone please give me a crash course.