The Infrared Processing and Analysis Center (IPAC) is NASA's multi-mission center of expertise for long-wavelength astrophysics. IPAC serves to carry out data-intensive processing tasks of vital importance to NASA's infrared and sub-millimeter astronomy programs by developing and maintaining data archives and access/analysis tools, by offering scientific expertise on various projects to scientific investigators, and by conducting education and outreach efforts aimed at the general public. It is also the institutional home of the Spitzer Science Center (SSC) and the NASA Exoplanet Science Institute (NExScI), each of which maintains an autonomous management structure, while sharing IPAC resources.