In the case of a major fire, the Administrator may send incident investigators, which may include safety specialists, fire protection engineers, codes and standards experts, researchers, and fire training specialists, to the site of the fire to conduct a fire safety investigation as described in subsection (b).
If the Administrator, in consultation with appropriate Federal, State, local, Tribal, and territorial authorities determines that issuing a report under paragraph (1) would have a negative impact on a potential or ongoing criminal investigation, the Administrator is not required to issue such report.
In addition to a fire safety investigation conducted pursuant to subsection (a), provided doing so would not have a negative impact on a potential or ongoing criminal investigation, the Administrator may send fire investigators to conduct a fire safety investigation at the site of any fire with unusual or remarkable context that results in losses less severe than those occurring as a result of a major fire, in coordination and cooperation with the appropriate Federal, State, local, Tribal, and territorial authorities, including Federal agencies that are authorized to investigate the fire.
For purposes of this section, the term “major fire” shall have the meaning given such term under regulations to be issued by the Administrator.