What is the Export Control Classification Number (ECCN) for Gurobi? Greg Glockner November 27, 2020 23:05 Updated Gurobi software is designated as EAR99, according to export laws of the United States. Any changes to this classification will be posted on this page. Related articles Gurobi 9.1.1 released How do I cite Gurobi software for an academic publication? How do I multiply an array and a 2-D MVar object using the matrix-friendly Python API? How do I implement lazy constraints in Gurobi?