David joined the USGA staff in 2007. He is the primary author of the PGA/USGA Rules of Golf workshop presentations. He has officiated at 16 different USGA Championships, as well as the Walker Cup match and the PGA Championship. David volunteers for the Golf Association of Philadelphia, the Pennsylvania Golf Association, the Middle-Atlantic Golf Association and the Maryland State Golf Association. He has played in 3 USGA Championships and has been teaching PGA/USGA Rules of Golf Workshops since 2008.