Item 5. Other Information

U.S. Securities and Exchange Commission Investigation

The Staff of the Division of Enforcement of the U.S. Securities and Exchange Commission has been conducting an investigation regarding Entergy’s processes and controls relating to its accounting for materials and supplies inventory. Entergy is cooperating with the SEC staff’s investigation and has engaged in discussions with the staff regarding a possible resolution of the investigation. There can be no assurance regarding the timing or terms of any potential resolution, by settlement or otherwise, and any potential impact of a resolution cannot be predicted. Management does not believe, however, that any resolution will have a material impact on Entergy’s business, financial condition, or results of operations.

Rule 10b5-1 Trading Agreements

During the three months ended March 31, 2024, no director or officer of Entergy or any of the Registrant Subsidiaries adopted, modified, or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” as each term is defined in Item 408(a) of Regulation S-K, except as follows:

On March 6, 2024, Haley Fisackerly, Chairman of the Board, President, and Chief Executive Officer of Entergy Mississippi, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 1,000 shares of Entergy’s common stock. The first date that sale of any shares permitted to be sold under the trading arrangement can occur is June 5, 2024. Subsequent sales under the trading arrangement may occur on a regular basis until December 31, 2024.

Regulation of the Nuclear Power Industry

The following is an update to the “Regulation of the Nuclear Power Industry” section of Part I, Item 1 of the Form 10-K.

NRC Reactor Oversight Process

In July 2023 the NRC placed River Bend in Column 2, effective April 2023, based on failure to inspect wiring associated with the high pressure core spray system. In August 2023 the NRC issued a finding and notice of violation related to a radiation monitor calibration issue at River Bend. In December 2023, River Bend successfully completed the inspection of the high pressure core spray system issue and in February 2024, River Bend completed the supplemental inspection of the radiation monitor calibration issue, each in accordance with the NRC’s inspection policies for nuclear plants in Column 2. The NRC issued its inspection report on both issues in March 2024 and River Bend was returned to Column 1.

Environmental Regulation

The following is an update to the “Environmental Regulation” section of Part I, Item 1 of the Form 10-K.

National Ambient Air Quality Standards

See the Form 10-K for discussion of the National Ambient Air Quality Standards (NAAQS) set by the EPA in accordance with the Clean Air Act. The following is an update to that discussion.

Revised Fine Particulate (PM2.5) NAAQS

In March 2024, EPA issued a final rule which revised the primary annual NAAQS for fine particulate matter, also known as PM2.5, from 12 ug/m3 to 9 ug/m3. This new standard is effective May 2024 and initial attainment/nonattainment designations for areas with available information are due within two years, by May 2026.

For any areas designated as nonattainment for this revised standard, State Implementation Plans (SIPs) to address nonattainment requirements will be due within 18 months of the effective date of any initial nonattainment designations. Within Entergy’s utility service territory, current regulatory agency air monitor data for Harris County, Texas and Hinds County, Mississippi reflect annual average PM2.5 concentrations in excess of this new standard and monitors for several other areas reflect concentrations between 8-9 ug/m3. Entergy will continue to work with state environmental agencies on appropriate methods for assessing attainment and nonattainment with the this revised fine particulate NAAQS.