Proposed and existing radar instruments are enabling an unprecedented range of radio geophysical observations of the surfaces and subsurfaces of solar system bodies. This has spurred the development and application of new instrumentation, processing, modeling, analysis, and interpretation approaches to planetary radar science and engineering. We invite abstracts on any topic involving the use of radar data to understand planetary bodies. These may describe (but are not limited to) new results from existing radar observations, the development and application of new observation or data processing techniques, numerical modeling of existing or future observations, and/or the analysis of airborne or orbital radar data from terrestrial analog studies for solar system observation.