; (2) has a continuous boundary; and (3) the Secretary of Agriculture designates as a Tribal Promise Zone, after consultation with the Secretary of Commerce, the Secretary of Education, the Attorney General, the Secretary of the Interior, the Secretary of Housing and Urban Development, the Secretary of Health and Human Services, the Secretary of Labor, the Secretary of the Treasury, the Secretary of Transportation, and other agencies as appropriate. (b) Authorization and number of designations Not later than 1 year after the date of enactment of this Act, the Secretary of Agriculture shall nominate a minimum number of nominated zones, as determined by the Secretary of Agriculture in consultation with Indian tribes, to be designated as Tribal Promise Zones. (c) Period of designations (1) In general The Secretary of Agriculture shall designate nominated zones as Tribal Promise Zones before January 1, 2020. (2) Effective dates of designations The designation of any Tribal Promise Zone shall take effect— (A) for purposes of priority consideration in Federal grant programs and initiatives (other than this section), upon execution of the Tribal Promise Zone agreement with the Secretary of Agriculture; and (B) for purposes of this section, on January 1 of the first calendar year beginning after the date of the execution of the Tribal Promise Zone agreement. (3) Termination of designations The designation of any Tribal Promise Zone shall end on the earlier of— (A) (i) with respect to a Tribal Promise Zone not described in paragraph (4), the end of the 10-year period beginning on the date that such designation takes effect; or (ii) with respect to a Tribal Promise Zone described in paragraph (4), the end of the 10-year period beginning on the date the area was designated as a Tribal Promise Zone before the date of the enactment of this Act