A summary presentations are presented for the 4th Conseil International du Batiment (CIB) Workshop on Fire Modeling. The scope of the presentations, 47 in number, include reports of recent developments and applications of zone and field models, presentations on specific phenomena needed by computer algorithms, and presentations on the subject of interior finish flammability. The Workshop showed that a variety of models are in international use, that data is lacking to confirm the accuarcy of the models for applications beyond their base of development, and that it is becoming evident that the fire growth hazard of interior finish materials can be predicted from small scale test data.