To update you on the change in Cheyenne, Wyomning's rabies ordinances to adopt the national 3 year protocol, there is an article in the September 27, 2008 issue of the Wyoming Eagle Tribune entitled
Council Mulls Less Frequent Rabies Shots Wyoming Tribune Eagle Online by Jodi Rogstad.
"Good news for dog and cat owners: Instead of the annual rabies shot for your furry friends, that requirement may change to as little as once every three years."