The current Boy Scout Requirements book is available from your local Scouting merchandise distributor. It may also be ordered online at www.scoutstuff.org. Requirements for the Astronomy, Horsemanship, and Nuclear Science merit badge have extensive changes. Those with minor revisions include Archery (5, options A[f]2 and B[f]2) and Sports (2). Geocaching, Inventing, and Scouting Heritage are new merit badges.
The 2009 printing of the Boy Scout Handbook inadvertently included bugler as a position of responsibility under Eagle Scout requirement 4; it is not. The requirements in the 2011 Boy Scout Requirements book are correct and official.