; or (H) address first and last mile connectors. (g) EPA report A State that receives funds under this section shall collect data and, beginning 1 year from the date of the completion of each project or project phase that receives such funds, and annually thereafter for 15 years, report to the Secretary and the Administrator of Environmental Protection Agency on progress made toward greenhouse gas emission reductions and local air pollution reductions in accordance with the State freight plan. All relevant data and reporting shall be collected and reported in accordance with guidance developed by the Administrator in consultation with the Secretary. (h) Federal Share (1) In general The Federal share of the cost of a project carried out by a State using funds provided under this section may not be more than 80 percent. (2) Additional Federal share The Federal share of the cost of a project carried out by a State using funds provided under this section may be increased by 5 percent if the such 5 percent is used for the mitigation of diesel emissions from construction activities associated with the project. The Administrator of Environmental Protection Agency, in consultation with the Secretary, shall develop guidance for eligible equipment and activities consistent with existing State, local, and nonprofit clean construction guidelines. (i) Reservation of funds for territories Before making a calculation under subsection (b), the Secretary shall withhold funds for distribution to each territory in an amount based on the freight infrastructure need of the territories, as determined by the Secretary. Such funds shall not otherwise be made available for distribution under this section. (j) Authorization of appropriations There is authorized to be appropriated from the Freight Trust Fund to carry out this section an amount equal to 50 percent of the receipts of the Freight Trust Fund for each fiscal year beginning in fiscal year 2018. (k) Administration and oversight costs The Secretary may retain up to one-half of 1