strategy. (4) Guidance for inclusion and maintenance of data on firefighters The Secretary shall develop, in consultation with the stakeholders identified in subsection (e), and disseminate guidance to State health agencies, State departments of homeland security, and volunteer, paid-on-call, combination, and career firefighting agencies that outlines the following: (A) How new information about firefighters will be submitted to the Firefighter Registry for inclusion. (B) How information about firefighters will be maintained and updated in the Firefighter Registry over time. (C) A method for estimating the number of fire incidents attended by a firefighter as well as the type of fire incident so attended in the case such firefighter is unable to provide such information. (D) Further information, as deemed necessary by the Secretary. (5) Ensuring representation of underrepresented groups in registry In carrying out this section, the Secretary shall take such measures as the Secretary deems appropriate to encourage the inclusion of data on minority, female, and volunteer firefighters in the Firefighter Registry established under this section. (e) Consultation The Secretary shall, on a regular basis, seek feedback regarding the utility of the Firefighter Registry established under this section and ways the Firefighter Registry can be improved from non-Federal experts in the following areas: (1) Public health experts with experience in developing and maintaining cancer registries. (2) Epidemiologists with experience in studying cancer incidence. (3) Clinicians with experience in diagnosing and treating cancer incidence. (4) Active and retired volunteer, paid-on-call, and career firefighters as well as relevant national fire and emergency response organizations. (f) Research availability The Secretary shall develop and make public a process for de-identifying data from the Firefighter Registry and making such data available without a fee for research or other purposes. Such process shall provide that such data shall