; and (2) by striking subsection (m) and inserting the following new subsections: (m) Periods of performance (1) In general Except as provided in paragraph (2), funds provided pursuant to a grant awarded under this section for a use specified in subsection (b) shall remain available for use by a grant recipient for a period of not fewer than 36 months. (2) Exception Funds provided pursuant to a grant awarded under this section for a use specified in subparagraph (M) or (N) of subsection (b)(1) shall remain available for use by a grant recipient for a period of not fewer than 55 months. (n) Authorization of appropriations There is authorized to be appropriated for grants under this section $200,000,000 for each of fiscal years 2018 through 2022. . 114. Port security grant program Section 70107 of title 46, United States Code, is amended by— (1) striking subsection (l); (2) redesignating subsection (m) as subsection (l); and (3) adding at the end the following new subsections: (n) Period of performance The Secretary shall make funds provided under this section available for use by a recipient of a grant for a period of not less than 36 months. (o) Authorization of appropriations There is authorized to be appropriated for grants under this section $200,000,000 for each of the fiscal years 2018 through 2022. . 115. National Domestic Preparedness Consortium Section 1204 of the Implementing Recommendations of the 9/11 Commission Act ( 6 U.S.C. 1102 ) is amended— (1) in subsection (d), by amending paragraphs (1) and (2) to read as follows: (1) for the Center for Domestic Preparedness, $63,939,000 for each of fiscal years 2018 and 2019; and (2) for the remaining Members of the National Domestic Preparedness Consortium, $101,000,000 for each of fiscal years 2018 and 2019.