Company: SOJE
Filing Date: 2025-02-20
Form Type: 10-K
Source: 0000092122-25-000018
Chunk: 816

Company: SOUTHERN CO
Filing Date: 2025-02-20
Form: 10-K
Item: Item 7A
Chunk 816
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)Southern Company$236 $523 $357 $494 $218 $1,828 Alabama Power67 110 115 217 70 579 Georgia Power158 396 222 266 138 1,180 Mississippi Power11 17 20 10 10 68 

These estimates do not include compliance costs associated with regulation of GHG emissions. See "Environmental Laws and Regulations – Greenhouse Gases" herein for additional information. The Southern Company system also anticipates substantial expenditures associated with surface impoundment closure and groundwater monitoring under the CCR Rule and related state rules, which are reflected in the applicable Registrants' ARO liabilities. See FINANCIAL CONDITION AND LIQUIDITY – "Cash Requirements" herein and Note 6 to the financial statements for additional information.

Environmental Laws and Regulations

Air Quality

Since 1990, the Southern Company system reduced SO2 and NOX air emissions by 99% and 92%, respectively, through 2023. Since 2005, the Southern Company system reduced mercury air emissions by 97% through 2023.

In February 2023, the EPA published a final rule disapproving 19 state implementation plans (SIPs), including SIPs submitted by the States of Alabama and Mississippi, under the interstate transport (good neighbor) provisions of the Clean Air Act for the 2015 Ozone National Ambient Air Quality Standards (NAAQS). In March 2023, the State of Mississippi and Mississippi Power challenged the EPA's disapproval of the Mississippi SIP in the U.S. Court of Appeals for the Fifth Circuit. In June 2023, the U.S. Court of Appeals for the Fifth Circuit stayed the EPA's disapproval of the Mississippi SIP, pending appeal. In April 2023, the State of Alabama, Alabama Power, and PowerSouth Energy Cooperative challenged the EPA's disapproval of the Alabama SIP in the U.S. Court of Appeals for the Eleventh Circuit. In August 2023, the U.S. Court of Appeals for the Eleventh Circuit stayed the EPA's disapproval of the Alabama SIP, pending appeal. On October 21, 2024, the U.S. Supreme Court issued an order granting review of a decision by the U.S. Court of Appeals for the Tenth Circuit transferring challenges to the EPA's disapproval of 

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