Call for system descriptions The JSAT journal is now accepting a new kind of contribution: system descriptions. The idea of the "System Description" category is that it will be refereed papers that describe the internals of a SAT (broad sense, MAXSAT, QBF, SMT, etc. included) solver without the usual requirements for a full paper. In fact, a "System Description" is limited to four pages. A "System Description" need not have novel unpublished ideas, as is required for a regular paper. Also, the criterion of experimental evaluation is reduced, especially if the paper can mention performance in a recognized competition. Accuracy, completeness, and clarity of the description are the primary refereeing criteria. The criterion of citing every paper written on clause learning (or whatever) is relaxed, but relevant citations predating the work are still expected. Detailed comparisons are not. Each paper should have an "as of" date clearly stated in the abstract and the first sentence or so of the body. The author is NOT required to address subsequent results! MOTIVATION System descriptions made available during competitive events cannot be considered refereed research, and it is not really appropriate to require authors to cite such casual documents (which may well be inaccurate, not having been reviewed at all).