To amend the Act authorizing the establishment of the Chattahoochee River National Recreation Area to modify the boundaries of the Area, and to provide for the protection of lands, waters, and natural, cultural, and scenic resources within the national recreation area, and for other purposes.

[AI summary unavailable — showing source text] Provides for an additional map to depict lands added to the Chattahoochee River National Recreation Area, Georgia, pursuant to this Act. Allows, after July 1, 1999, the Secretary of the Interior to modify the boundaries of the Area to include other lands within 2,000 feet of each bank of the River by submitting a revised map or other boundary description to the Congress. Prohibits such revised boundaries from taking place if the Congress adopts a Joint Resolution disapproving the revision. Permits, before such date, a landowner whose land or portion thereof is within 2,000 feet of each bank of the River, to notify the Secretary that such land is not to be included within the revised boundaries of the Area. Requires the Secretary to modify the boundaries to exclude such land upon receipt of its legal description. Increases the total acreage limitation for the Area to 10,000 (currently, approximately 6,800). Repeals Federal provisions providing for exchange of Federal lands within the Area for non-Federal lands within its boundaries. Authorizes the Secretary to enter into cooperative agreements with other entities (currently, Georgia and its political subdivisions) to assure standard…