Volunteer registration is now open for the 2013 Principal Charity Classic to be held May 28-June 2 at its new location, Wakonda Club in Des Moines. More than 1,100 volunteers will be recruited to work on one of 21 committees, including: marshals, leaderboards, scoring and transportation. Registration will be granted on a first-come, first-served basis with the ability to select committee preferences. Volunteers can register online at www.principalcharityclassic.com.