; and (8) develop contingency plans for the long-term monitoring of hypoxia. . 6. Consultation required Section 102 of the Harmful Algal Bloom and Hypoxia Amendments Act of 2004 ( 33 U.S.C. 4001a ) is amended by striking the amendments made by this title and inserting the Harmful Algal Bloom and Hypoxia Research and Control Act of 1998 . 7. Hypoxia or harmful algal bloom of national significance (a) Relief (1) In general Upon a determination under subsection (b) that there is an event of national significance, the appropriate Federal official is authorized to make sums available to the affected State or local government for the purposes of assessing and mitigating the detrimental environmental, economic, subsistence use, and public health effects of the event of national significance. (2) Federal share The Federal share of the cost of any activity carried out under this subsection for the purposes described in paragraph (1) may not exceed 50 percent of the cost of that activity. (3) Donations Notwithstanding any other provision of law, an appropriate Federal official may accept donations of funds, services, facilities, materials, or equipment that the appropriate Federal official considers necessary for the purposes described in paragraph (1). Any funds donated to an appropriate Federal official under this paragraph may be expended without further appropriation and without fiscal year limitation. (b) Determinations (1) In general At the discretion of an appropriate Federal official, or at the request of the Governor of an affected State, an appropriate Federal official shall determine whether a hypoxia or harmful algal bloom event is an event of national significance. (2) Considerations In making a determination under paragraph (1), the appropriate Federal official shall consider the toxicity of the harmful algal bloom, the severity of the hypoxia, its potential to spread, the economic impact, the relative size in relation to the past 5 occurrences of harmful algal blooms or hypoxia events that occur on a