Below is a release from the ATC regarding requirement of bear canisters for part of the AT in GA:
Bear canisters required for camping between Jarrard Gap and Neel Gap
A new U.S. Forest Service rule requires approved bear-resistant storage containers for overnight camping on a 5-mile stretch of the A.T. in the Chattahoochee National Forest between Jarrard Gap and Neel Gap, between March 1 and June 1. This stretch is located between points 26.7 and 31.7 miles north of the southern terminus of the A.T. at Springer Moutain, Georgia, and includes Woods Hole Shelter, Slaughter Creek Campsite, and Blood Mountain Shelter. “Bear canisters” should be used to store food, food containers, garbage and toiletries.