Interstate
Air Rules
Citing significant health
and clean air benefits, Former EPA Administrator Mike Leavitt signed the
Interstate Air Quality Rule on December 17, 2003. This proposal could
result in cuts in sulfur dioxide (SO2) and nitrogen oxides (NOx)
emissions.
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Mercury Rule
On December 15, 2003, EPA
signed its first ever proposal to substantially cut mercury emissions
from coal-fired power plants. The Utility Mercury Reductions proposal
would cut mercury emissions by nearly 70 percent when fully implemented.
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Diesel Rule
EPA is proposing a
comprehensive national program to reduce emissions from nonroad diesel
engines by treating engine controls and reduced sulfur fuel as a system
to gain the greatest emission reductions. The new emission standards
apply to diesel engines used in most kinds of construction,
agricultural, and industrial equipment. Because the emission control
devices can be damaged by sulfur, EPA is also proposing to reduce the
allowable level of sulfur in nonroad diesel fuel by more than 99
percent.
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Revised Ozone Rules
On November 14, 2002, EPA
outlined the schedule for designating areas under the new 8-hour ozone
standard. EPA issued final designations on April 15, 2004. The
designations will be used by state, tribal, and local governments to
establish control programs to reduce ozone-forming pollution.
Hillsborough County has attained the new ozone standard.
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New Particulate Rules
In February 2004, states
and tribes recommended PM 2.5 designations to EPA for areas to be
designated as "nonattainment". Once nonattainment designations take
effect, the state and local governments have three years to develop
implementation plans designed to meet the standards by reducing air
pollutant emissions contributing to fine particle concentrations.
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