Summary: The International Astronomical Union (IAU) promotes and coordinates worldwide cooperation in astronomy. The IAU, through its 11 Scientific Divisions and 40 Commissions covering the full spectrum of astronomy, plays a key role in fostering international collaborations. The U.S. National Committee (USNC) for IAU represents the interests of the U.S. astronomical community and safeguards the intellectual vigor of the Union. The USNC/IAU explores issues in: -Interdisciplinary Research and Resources; -Individual IAU Membership; -Access to Scientific Data and Information; -Diversity Among Astronomers; and -Young Researcher Participation in IAU.