Abstract: A system for on-demand printing of hazardous material placards, the system comprising: (a) an input device through which a user can input parameters relating to a hazardous material to be transported or stored; (b) a processor configured to determine a hazardous material placard for the hazardous material according to a computerized analysis of the input parameters; and (c) an output device configured to print the determined placard. Preferably, the processor determines the appropriate placard by executing a placard selection program that comprises a plurality of placard selection rules, wherein the placard selection rules define the conditions under which a placard is to be used. Further, the placard selection rules preferably comply with government regulations relating to the shipment and/or storage of hazardous materials. Also, the system may display a menu of placards selectable by the user for printing.