Acid Deposition Control Act

Acid Deposition Control Act - Directs the Administrator of the Environmental Protection Agency to establish a Nitrogen Oxide Allowance Program under which the contiguous States and the District of Columbia will be allocated allowances, beginning in the year 2000, to emit limited monthly amounts of nitrogen oxides. Allocates such allowances in proportion to a State's share of total electric power generated in the contiguous States.

Sets forth requirements for the intrastate distribution of allowances among affected facilities (facilities with combustion units that serve an electricity generator with a minimum capacity of 25 megawatts) by a State or the Administrator.

Requires the Administrator to promulgate regulations: (1) authorizing allowances to be transferred among affected facilities or persons; and (2) for issuing and tracking the use and transfer of allowances. Permits unused allowances to be carried forward for subsequent years.

Requires the Administrator, for States for which the Administrator distributes allowances, to place ten percent of the total allowances in a new source reserve. Provides for the auctioning and sale of undistributed allowances in such reserve during 2003 through 2005. Distributes auction proceeds to affected sources in proportion to the number of allowances that would have been received but for the auction.

Authorizes the Administrator to terminate or limit allowances.

Makes it unlawful, after January 1, 2000, for: (1) the owner or operator of an affected facility to emit nitrogen oxides exceeding the amount permitted by allowances held by such facility; or (2) any person to hold, use, or transfer such allowances, except as provided under this Act.

Repeals the nitrogen oxides emission reduction program under the Clean Air Act.

Bars the use of an allowance before the calendar year for which the allowance is allocated.

Amends the Clean Air Act to require owners or operators of industrial facilities with a minimum capacity of 100 million British thermal units (mmBtus) per hour to install and operate continuous emission monitoring systems on affected units and quality assure data for sulfur dioxide, nitrogen oxides, opacity, and volumetric flow.

Imposes penalties for emissions in excess of allowances. Requires offsets of allowances in the calendar year following the one in which excess emissions occurred.

Decreases the amount of sulfur dioxide authorized to be emitted under an existing allowance program for 2003 and subsequent years.

Requires the Administrator to report to the Congress on objectives for scientifically credible environmental indicators, including acid neutralizing capacity, sufficient to protect sensitive ecosystems of the Adirondack, Mid-Appalachian, and Blue Ridge Mountains and the Great Lakes, Lake Champlain, Long Island Sound, and the Chesapeake Bay. Directs the Administrator, by December 31, 2006, to determine whether emissions reductions under this Act are sufficient to achieve such objectives and, if not, to promulgate regulations necessary to protect such ecosystems.

Requires the Administrator to study and report to the Congress on the practicality of monitoring mercury emissions from all combustion units with a minimum capacity of 250 mmBtus per hour. Provides for regulations to: (1) require reporting of mercury emissions from such units; and (2) control electric utility and industrial source mercury emissions.

Directs the Administrator to establish a competitive grant program to fund research related to the effects of nitrogen deposition on sensitive watersheds and coastal estuaries in the eastern United States. Requires the Administrator to report to the Senate Committee on Environment and Public Works and the House Committee on Resources on the health and chemistry of certain Adirondack lakes and streams that were subjects of a specified report required under the Clean Air Act Amendments of 1990. Authorizes appropriations.