--- ticker: NSC company: Norfolk Southern Corporation filing_type: 10-K year_current: 2024 year_prior: 2023 risks_added: 1 risks_removed: 0 risks_modified: 0 risks_unchanged: 6 source: SEC EDGAR url: https://riskdiff.com/nsc/2024-vs-2023/ markdown_url: https://riskdiff.com/nsc/2024-vs-2023/index.md generated: 2026-05-10 --- # Norfolk Southern Corporation: 10-K Risk Factor Changes 2024 vs 2023 > Source: U.S. Securities and Exchange Commission (EDGAR) > Generated: 2026-05-10 > All data extracted directly from official filings. No hallucinated content. > **[AI-Generated Summary]** The paragraph below was produced by a language > model and may contain errors. All other content on this page is deterministically > extracted from the original SEC filing. > Norfolk Southern Corporation added one new risk factor in its 2024 10-K titled "INCIDENT RISKS," while maintaining all six previously disclosed risks without substantive modifications. This expansion of disclosed risk factors reflects the company's identification of incident-related exposures as a material concern warranting explicit disclosure to investors. The addition represents a net increase in the number of identified risk categories in the railroad operator's regulatory filings. --- ## Summary | Status | Count | |--------|-------| | New risks added | 1 | | Risks removed | 0 | | Risks modified | 0 | | Unchanged | 6 | --- ## New in Current Filing: INCIDENT RISKS As defined and as further described in Note 17 in Item 8 "Notes to Consolidated Financial Statements", there was an Incident that occurred in the first quarter that consisted of a February 3, 2023 train derailment in East Palestine, Ohio that included 11 non-Company-owned tank cars containing hazardous materials, fires associated with the derailment that threatened certain of the tank cars, and a controlled vent and burn procedure conducted on February 6, 2023 on five of the derailed tank cars, all of which contained vinyl chloride. As a result of the Incident, we have become subject to numerous legal, regulatory, legislative and other proceedings related thereto, including but not limited to, the National Transportation Safety Board (NTSB) Investigation, the FRA Incident Investigation, the FRA Safety Assessment, the U.S. Department of Justice (DOJ) Complaint, the Ohio Complaint, the Incident Lawsuits, the Shareholder Matters, and the Incident Inquiries and Investigations, (each as defined in Note 17 in Item 8 "Notes to Consolidated Financial Statements"), in addition to other proceedings, actions, or potential changes in response to the Incident, including but not limited to those related to, among other items, train size, train length, train composition, or crew size (collectively, the "Incident Proceedings"). Set forth below are additional risks pertaining to an investment in the Company that are related to the Incident and the Incident Proceedings. The costs, liabilities, fines, penalties, and/or financial impact resulting from or related to the Incident or the Incident Proceedings have been significant to date, may exceed expected or accrued amounts, and have and can be expected to continue to negatively affect our financial results. We have incurred and will continue to remain subject to incurring significant costs, liabilities, fines, and penalties related to the Incident and the Incident Proceedings, including amounts that may have a material adverse effect on our financial position, results of operations, or liquidity. K11 K11 K11 In addition, while we have accrued estimates of probable and reasonably estimable liabilities with respect to the Incident and the Incident Proceedings (several of which are in early stages), we cannot predict the final outcome or estimate the reasonably possible range of loss with certainty and such estimates may change over time due to a variety of factors, including but not limited to those set forth in Note 17 in Item 8 "Notes to Consolidated Financial Statements" or other unfavorable or unexpected developments or outcomes which could result in our current estimates being insufficient. These estimated amounts also do not include any estimate of loss for specific items for which we believe a loss is either not probable or not reasonably estimable for the reasons set forth in Note 17 in Item 8 "Notes to Consolidated Financial Statements." As a result, our currently accrued amounts of estimated liabilities may be insufficient, and any additional, new or updated accruals could have a material adverse effect on our results of operations or financial position. New or additional governmental regulation and/or operational changes resulting from or related to the Incident or the Incident Proceedings may negatively impact us, our customers, the rail industry, or the markets we serve. The legislative, regulatory, operational or other actions taken, protocols adopted (including by us), or changes resulting from the Incident or any of the Incident Proceedings may, either individually or in the aggregate, have a material adverse effect on us, our customers, the rail industry, or the markets we serve. We also face risks from requirements that may be imposed by the government in resolution of government actions, including, for example, restrictions on our methods of operations. Our inability to comply with the requirements of any new or additional laws, regulations or operating protocols resulting from or related to the Incident or the Incident Proceedings may have a material adverse effect on our financial position, results of operations, liquidity, or operations. --- *Data sourced from SEC EDGAR. Last updated 2026-05-10.*