relations. 104 STAT. 2932 PUBLIC LAW 101-591—NOV. 16, 1990 October 24, 1990, as such maps may be revised by the Secretary under section 4 of the Coastal Barrier Improvement Act of 1990. "(b) SYSTEM MAPS.—The Secretary shall keep the maps referred to in subsection (a) on file and available for public inspection in the Office of the Director of the United States Fish and Wildlife Service, and in such other offices of that service as the Director considers appropriate. Inter- "(c) BOUNDARY REVIEW AND MODIFICATION.— At least once every 5 f°i^^;"TM^"^ years, the Secretary shall review the maps referred to in subsection (a) and shall make, in consultation with the appropriate State, local, and Federal officials, such minor and technical modifications to the boundaries of System units as are necessary solely to reflect changes that have occurred in the size or location of any System unit as a result of natural forces.". 16 USC 3503 SEC. 4. TECHNICAL REVISION OF MAPS; MODIFICATION OF BOUNDARIES; note. ADDITIONS TO SYSTEM. (a) TECHNICAL REVISION OF MAPS AND PROVISION TO STATE AND LOCAL GOVERNMENT.—Not later than 180 days after the date of the enactment of this Act, the Secretary shall— (1) make such technical revisions to the maps referred to in section 4(a) of the Coastal Barrier Resources Act (as amended by section 3 of this Act) as may be necessary to correct existing clerical and typographical errors in the maps; and (2) provide copies of the maps, as so revised, to— (A) each State and each local government in which is located a unit of the System; (B) the coastal zone management agency of each State— (i) in which is located a unit of the System; and (ii) which has a coastal zone management program approved pursuant to section 306 of the Coastal Zone Management Act of 1972 (16 U.S.C. 1455); and (C) appropriate Federal agencies. (b) RECOMMENDATIONS OF STATE AND LOCAL GOVERNMENTS FOR BOUNDARY MODIFICATIONS. —(1) Not later than 1 year after the date of the enactment of this Act— (A) a local government in which is located a unit of the System and which is in a State which has a coastal zone management program approved pursuant to section 306 of the Coastal Zone Management Act of 1972 (16 U.S.C. 1455); and (B) the coastal zone management agency of a State in which is located a unit of the System and which has such a program approved; may each submit to the Secretary recommendations for minor and technical modifications to the boundaries of existing units of the System located in that local government or State, respectively. (2) If, in the case of any minor and technical modification to the boundaries of System units made under the authority of subsection (d) of this section, an appropriate chief executive officer of a State, county or equivalent jurisdiction, or State coastal zone management agency to which notice was given in accordance with this subsection files comments disagreeing with all or part of the modification and the Secretary makes a modification which is in conflict with such comments, or if the Secretary fails to adopt a modification pursuant to a proposal submitted by an appropriate State coastal zone management agency under paragraph (1) of this subsection, the Secretary shall submit to the chief executive officer a written
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