David joined the USGA staff in 2007. He is the primary author of the PGA/USGA Rules of Golf workshop presentations. David and Lew Blakey restructured and rewrote the Decisions book index (2002-2008). He has officiated at 16 different USGA national championships, as well as the Walker Cup Match, and the PGA Championship. David volunteers for Golf Assn. of Philadelphia, Pennsylvania GA, Middle-Atlantic GA, Maryland State GA. He has played in 3 USGA National Championships. David has taught 29 PGA/USGA Rules of Golf Workshops since 2008.