In a statement, Cal Fire said its Office of the State Fire Marshall has determined through its administrative investigation that Kenneth Chee and Craig Cutright and their respective companies violated firework laws and regulations. Chee owns Devastating Pyrotechnics, Inc., and Cutright owns Blackstar Fireworks.

Friday, Cal Fire's Office of the State Fire Marshal announced that they had revoked the pyrotechnics licenses of Kenneth Chee and Craig Cutright – two people whose companies, Devastating Pyrotechnics Inc. and Blackstar Fireworks, are being investigated after the explosion.