Here it is from the ATC site:
Bear canisters seasonally 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 each year. 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. For more information, call the Chattahoochee - Oconee National Forest at (770) 297-3000.
We may just want to not camp in this section so we don't have to carry a canister.