Craig holds an M.S. and a Ph.D. in Mechanical Engineering from The University of Texas-Austin. During his graduate studies, Craig conducted experiments and developed computational models to characterize the impact of forced ventilation on room-scale compartment fires. Craig is also a developer of NIST's Fire Dynamics Simulator (FDS) Version 6. He has used FDS to study the fire dynamics and thermal environment of fires that resulted in line-of-duty deaths and injuries to firefighters.
Craig conducts research in the fields of firefighter safety, fire forensics, and fire science. Currently his focus is on characterizing the impact of firefighter tactics on the thermal and toxic environment within structures. Other research interests include community-scale fire-risk modeling (FireCARES.org), verification and validation of fire models, and the impact of ventilation on fire damage.