; and (B) provide opportunity for public input and consultation with tribes and Native American organizations. (b) Activities (1) National strategic action plan Not later than 2 years after the date of enactment of this Act, the Secretary, acting through the Director of the Centers for Disease Control and Prevention, and in collaboration with other Federal agencies as appropriate, shall, on the basis of the best available science, and in consultation with the entities described in subsection (a)(2), publish a national strategic action plan under paragraph (2) to guide the climate and health program and assist public health and health care professionals in preparing for and responding to the impacts of climate change on public health in the United States and other nations, particularly developing nations. (2) National strategic plan The national strategic plan shall include an assessment of the health system capacity of the United States to address climate change including— (A) the identification and prioritization of communities and populations vulnerable to the health impacts of climate change; (B) providing outreach and communication aimed at public health and health care professionals and the public to promote preparedness and response strategies; (C) providing for programs across Federal agencies to advance research related to the impacts of climate change on health; (D) the identification and assessment of existing preparedness and response strategies for the health impacts of climate change; (E) the prioritization of critical public health and health care infrastructure projects; (F) providing modeling and forecasting tools of climate change health impacts; (G) establishing academic and regional centers of excellence; (H) providing technical assistance and support for preparedness and response plans for the health threats of climate change in States and developing nations