; or (2) affects any water rights or contracts. 4. Authorization of appropriations (a) In general There is authorized to be appropriated to carry out this Act $10,000,000, of which not more than $1,000,000 may be made available for any fiscal year. (b) Cost-Sharing requirement The Federal share of the total cost of any activity under this Act shall be determined by the Secretary, but shall be not more than 50 percent. (c) Non-Federal share The non-Federal share of the total cost of any activity under this Act may be in the form of in-kind contributions of goods or services. 5. Termination of authority (a) In general If a proposed Heritage Area management plan has not been submitted to the Secretary by the date that is 5 years after the date of enactment of this Act, the Heritage Area designation shall be rescinded. (b) Funding authority The authority of the Secretary to provide assistance under this Act terminates on the date that is 15 years after the date of enactment of this Act.