National Transportation Safety Board (NTSB)

The National Transportation Safety Board is the independent federal agency responsible for investigating civil transportation accidents in the United States and issuing safety recommendations to prevent future occurrences. The NTSB investigates every civil aviation accident in the U.S. and significant accidents in rail, highway, marine, and pipeline transportation. Its recommendations — while not legally binding — carry enormous weight and have driven most of the major transportation safety improvements of the past 50 years.

Current Law (2026)

Legal Authority

• 49 U.S.C. § 1111 — Establishment (creates the NTSB as an independent establishment; 5 members, bipartisan, appointed by President with Senate confirmation)
• 49 U.S.C. § 1113 — Authority (NTSB may investigate accidents, hold hearings, issue subpoenas, and take depositions; may inspect wreckage and testing records)
• 49 U.S.C. § 1114 — Disclosure of information (accident investigation reports, factual records, and safety recommendations are public; certain cockpit voice recorder and surface vehicle recordings are protected from public disclosure)
• 49 U.S.C. § 1131 — General accident investigation authority (NTSB shall investigate or have investigated each civil aviation accident; may investigate highway, railroad, pipeline, and marine accidents)
• 49 U.S.C. § 1132 — Priority of NTSB investigations (NTSB investigation has priority over all other federal investigations; other agencies may participate only with NTSB approval)
• 49 U.S.C. § 1134 — Investigative powers (NTSB may examine and test wreckage, access cockpit voice and flight data recorders, and impound evidence)
• 49 U.S.C. § 1135 — Safety recommendations and reports (NTSB shall report on investigations and issue safety recommendations to federal, state, and local agencies; recipient agencies must respond within 90 days)
• 49 U.S.C. § 1136 — Assistance to families of aviation accident victims (NTSB serves as the coordinator of federal family assistance after major aviation disasters)

How It Works

The NTSB's power lies not in regulatory authority — it has none — but in the credibility and independence of its investigations. The Board determines the probable cause of transportation accidents and issues safety recommendations, but it cannot write regulations, issue fines, or compel action. Its influence comes from the quality of its work and the public pressure that accompanies its findings.

In aviation, the NTSB's mandate is absolute: it investigates every civil aviation accident in the United States, from major airline crashes to small general aviation incidents. The FAA, airlines, manufacturers, and other parties participate in investigations, but the NTSB controls the process and determines the probable cause. This independence from the FAA — the agency that regulates aviation safety — is critical, because the FAA's own regulatory failures may be a contributing factor.

The priority provision is one of the NTSB's most important statutory protections: its investigation takes priority over all other federal investigations. Law enforcement agencies, regulatory bodies, and other investigators must defer to the NTSB's investigation. This prevents evidence from being compromised or the investigation from being delayed by other proceedings.

For other transportation modes — railroad, highway, marine, and pipeline — the NTSB has discretionary authority, investigating major and significant accidents rather than every incident. The agency selects cases based on severity, safety significance, and the potential for systemic safety improvements. Railroad grade crossing accidents, hazardous materials releases, major pipeline failures, and significant marine casualties are typical targets.

The safety recommendation process is the NTSB's primary output mechanism. After determining probable cause, the Board issues recommendations to the agencies, companies, and organizations best positioned to prevent recurrence. Recipients must respond within 90 days, explaining what action they will take. The NTSB tracks open recommendations through its Most Wanted List — a public inventory of the most critical unimplemented safety improvements. Most Wanted List items receive sustained attention until the responsible agency acts.

Family assistance is a more recent NTSB responsibility, added after the TWA Flight 800 disaster revealed the inadequacy of airline disaster response to victims' families. The NTSB now coordinates federal family assistance after major aviation disasters, ensuring that families receive information, support, and access.

How It Affects You

State Variations

The NTSB is exclusively federal. State involvement includes:

Implementing Regulations

• 49 CFR Parts 800–850 — NTSB rules covering investigation procedures, public hearing conduct, safety recommendation issuance, party participation rights, and FOIA procedures.

• 49 CFR Part 831 — Investigation Procedures (35 sections — the detailed framework governing how the NTSB conducts accident investigations across all transportation modes):

  • § 831.2 — Mandatory investigation jurisdiction: NTSB is required to investigate: (a) all civil aviation accidents involving fatalities or substantial aircraft damage; (b) highway accidents the Board decides to investigate; (c) railroad and pipeline accidents the Board decides to investigate; (d) marine casualties on navigable U.S. waters and on the high seas involving U.S. vessels; (e) hazardous material transportation accidents; for aviation, the mandate is essentially universal for serious accidents — unlike other modes where NTSB selects from candidates
  • § 831.4 — Nature of investigation: NTSB investigations are fact-finding only — they are not adversarial proceedings designed to attribute blame or determine liability; the statute prohibits use of NTSB investigative files in civil litigation (but parties have litigated the limits of this prohibition extensively); the Board's mission is exclusively to determine the probable cause and contributing factors to prevent future accidents, not to punish anyone; law enforcement investigations by the FBI, FAA, or other agencies proceed separately and simultaneously
  • § 831.10 — Autopsies and postmortem testing: when a person dies as a result of a transportation accident under NTSB jurisdiction, the Board may order an autopsy, toxicological testing, or other postmortem procedures; NTSB routinely requires postmortem toxicology on pilots, train engineers, and other operators to determine whether alcohol, drugs, or prescription medications were factors; results become part of the accident record and may identify a contributing cause
  • § 831.11 — Parties to the investigation: the Investigator-in-Charge (IIC) may designate organizations as "parties" — typically: the aircraft manufacturer, the airline, the pilots' union (ALPA), the FAA, and any other entity with critical technical expertise; parties gain access to wreckage, flight data recorders, and investigation proceedings in exchange for contributing technical expertise; they may not use party status to conduct discovery for litigation purposes; a party's lawyers are typically excluded from the technical investigation process (though party representative roles often fall to company employees or union representatives who are also attorneys)
  • § 831.12 — Wreckage custody: only persons authorized by the NTSB may access, examine, remove, or release wreckage, records, mail, and cargo from an accident site; unauthorized disturbance of an accident site (including by airlines, manufacturers, or law enforcement) is a violation of federal law; the IIC controls access until NTSB releases the site; preservation of evidence integrity is why NTSB retains authority over crash sites even on private property
  • § 831.13 — Release of investigative information: the IIC controls the timing and content of all information released during an active investigation; parties may not publicly release investigative information without IIC authorization; "leaking" NTSB investigation findings, flight data recorder data, or cockpit voice recorder transcripts to the media during an active investigation is a violation — NTSB has censured parties for unauthorized releases; official factual information is released in structured factual reports
  • § 831.14 — Proposed findings: at the conclusion of an investigation, parties may submit proposed findings of probable cause and contributing factors; NTSB evaluates party submissions but is not bound by them; the Board's determination of probable cause is issued in a final accident report that becomes the authoritative record; the probable cause determination drives safety recommendations
  • §§ 831.20–831.22 — Aviation investigation authority: the NTSB is the lead agency for all U.S. civil aviation accidents; the FAA cooperates as a party but may not conduct its own independent investigation of NTSB-jurisdictional accidents; for accidents involving international aircraft or requiring coordination under ICAO Annex 13 (which governs international accident investigation), NTSB's authority coordinates with the State of Occurrence (for foreign accidents involving U.S.-manufactured aircraft) and the State of Design (where NTSB has responsibilities as the certifying authority)
  • §§ 831.30–831.40 — Surface transportation investigations: for highway, railroad, pipeline, and hazardous materials accidents, NTSB has concurrent authority with DOT's modal agencies (FHWA, FRA, PHMSA) — unlike aviation where NTSB is sole lead, surface investigation authority involves more interagency coordination; NTSB selects which surface accidents to investigate based on severity, systemic significance, and whether the accident raises safety issues that NTSB-level investigation could resolve better than modal agency investigation

  The NTSB investigation process typically follows a six-step flow: (1) immediate notification and IIC deployment to the scene; (2) documentation and evidence preservation (the first 72 hours are critical); (3) factual investigation with parties contributing technical expertise; (4) systems group study and laboratory analysis; (5) drafting and circulation of the probable cause narrative; (6) Board meeting and final accident report adoption. Major investigations (wide-body airliner accidents, multi-casualty highway crashes) take 12–24 months; smaller general aviation accidents may be resolved in 6–12 months. The investigation files — group chairman factual reports, engineering analyses, deposition transcripts — are not publicly disclosed until after the final report; this process has been challenged repeatedly by plaintiff lawyers but has been largely upheld by federal courts as necessary to maintain investigator candor. Recent rulemakings: 85 FR 2320 (January 2020), 84 FR 45687 (August 2019) — updated investigation procedures and party designation rules.

• 49 CFR Part 830 — Notification and Reporting of Aircraft Accidents or Incidents (the NTSB regulations governing what aviation operators must do immediately after an accident or serious incident — the operator-facing counterpart to Part 831's investigation procedures):

  • § 830.2 — Definitions: an aircraft accident is any occurrence between the time any person boards the aircraft with the intention of flight and all persons have disembarked, in which any person suffers death or serious injury, or the aircraft receives substantial damage; importantly, the definition now explicitly includes unmanned aircraft accidents (drone accidents), a 2015 addition reflecting the drone industry's growth; a fatal injury is one that results in death within 30 days of the accident (the 30-day window prevents cases where a victim initially survives from escaping accident classification)
  • § 830.5 — Immediate notification: operators must notify the nearest NTSB office immediately and by the most expeditious means available — call 844-373-9922 or 202-314-6290 — when: (1) any aircraft accident occurs; (2) any of 12 listed serious incidents occur, including: flight control system malfunction or failure, crew incapacitation, turbine engine debris escape other than through the exhaust path, in-flight fire, aircraft collision in flight, property damage exceeding $25,000 for repair (excluding aircraft damage), cargo aircraft door separation in flight, bird or drone strikes causing substantial damage; the specificity of the triggering list reflects decades of accident history — each category reflects a past accident type where early NTSB notification would have changed the investigation outcome
  • § 830.10 — Wreckage preservation: the operator is responsible for preserving wreckage, cargo, mail, and all records — including flight recorders and voice recorders — until NTSB takes custody or grants a release; wreckage may not be disturbed or moved except: to remove injured or trapped persons, to protect wreckage from further damage, or to protect the public from injury; if wreckage must be moved for safety reasons, sketches, notes, and photographs must be made of original positions before moving
  • § 830.15 — Written report: operators must file NTSB Form 6120.1/2 within 10 days of an accident, or 7 days if an overdue aircraft remains missing; each physically able crewmember must attach a personal statement of facts, conditions, and circumstances as they appeared to them; if a crewmember is incapacitated, they must file the statement as soon as physically able; written reports for incidents (as opposed to accidents) are only required when specifically requested by the NTSB

  Part 830 represents the handoff point between aviation operations and accident investigation — the moment at which an airline, charter operator, or aircraft owner's obligations shift from operational response to evidence preservation and legal reporting. The 10-day report deadline is frequently missed by small operators who are unaware of the requirement; NTSB Form 6120.1/2 is available from NTSB field offices and FAA Flight Standards District Offices. Recent rulemakings: 87 FR 42104 (July 2022) — added drone accidents to the definition; 80 FR 77587 (December 2015) — original unmanned aircraft accident inclusion.

• 49 CFR Part 840 — Railroad Accident Notification (the NTSB notification requirements that railroad operators must fulfill after accidents — parallel to Part 830 for aviation):

  • § 840.3 — Immediate notification: railroad operators must notify NTSB by calling the National Response Center at 800-424-0201 within 2 hours of any accident involving: (a) a fatality or serious injury; (b) total train-vehicle damage exceeding $150,000; (c) release of hazardous materials; (d) evacuation of the general public; (e) a collision between trains or between a train and a highway vehicle at a grade crossing; (f) derailment of a passenger train or any derailment resulting in casualties; the 2-hour clock starts at the time of occurrence, not when the railroad becomes aware — incentivizing rapid situational awareness
  • § 840.4 — Required notification information: name and title of person reporting, railroad name, location (relative to nearest city), time and date, accident description, number of casualties, hazardous materials involved, and extent of damages
  • NTSB uses the railroad notification to determine whether to deploy investigators; the FRA simultaneously receives many of the same notifications under 49 CFR Part 225 (FRA accident reporting), creating a parallel notification regime; NTSB selects which railroad accidents to investigate based on systemic significance, while FRA collects data on all reportable accidents

  The notification hotline number for railroad accidents (NRC 800-424-0201) is the same number used for oil spills, hazardous material releases, and other environmental emergencies — a coordinated federal notification hub that routes calls to appropriate agencies. NTSB Part 840 exists separately from FRA's Part 225 because the NTSB notification triggers the independent safety investigation, while FRA's parallel notification triggers regulatory compliance review; the two processes serve different functions even when covering the same accident.

• 49 CFR Part 845 — Rules of Practice in Transportation: Investigative Hearings; Meetings, Reports, and Petitions for Reconsideration (21 sections across 3 subparts — the procedural rulebook governing NTSB's public investigative hearings and board meetings, distinct from Part 831's field investigation procedures):

  • § 845.2 — Nature of investigative hearings: investigative hearings are fact-finding proceedings with no adverse parties — they are not subject to the Administrative Procedure Act (5 U.S.C. § 554) and are not conducted to determine rights, liabilities, or blame; the purpose is solely to develop the facts, conditions, and circumstances of a transportation accident to support the Board's probable cause determination and safety recommendations
  • § 845.3 — Sessions open to the public: investigative hearings are presumptively public; the board of inquiry (composed of NTSB staff) may close sessions only when testimony involves national security information or when the presiding officer finds good cause to protect witnesses or the integrity of the investigation
  • § 845.5 — Parties to investigative hearings: the NTSB designates who may participate as a party — parties typically include the operators involved, the manufacturers of equipment, the FAA (for aviation accidents), and other entities with direct knowledge of the accident; the distinction between Part 845 (investigative hearing parties) and Part 821 (certificate action parties) is fundamental: a party to an NTSB investigative hearing is participating in a fact-finding process, not an adjudication of rights
  • § 845.11 — Witness examination: the technical panel (NTSB staff) examines witnesses first; then parties have opportunity to examine; then the board of inquiry concludes; materiality and relevancy objections in the "legal sense" are not available — the chairman controls scope by ruling on their own motion, not through adversarial objection practice
  • § 845.12 — Evidence: the chairman receives all testimony and evidence that "may be of aid in determining the probable cause" — a broader standard than civil trial evidence rules; cumulative or non-pertinent evidence may be excluded
  • § 845.13 — Proposed findings: after the hearing, any party may submit proposed findings, probable cause statements, and safety recommendations; the proposals are part of the public docket; NTSB is not bound by party proposals but considers them in drafting the final accident report
  • § 845.21 — Symposiums, forums, and conferences: NTSB may convene symposiums (presentations by invited researchers), forums (Q&A with invited experts), and conferences (large organized proceedings with group discussion) on transportation safety topics; these are not accident investigations but rather policy and science input events; a quorum of Board Members is not required to attend
  • §§ 845.30–845.32 — Reports, petitions for reconsideration, and correction of factual records: parties and other interested persons may petition the Board to reconsider an accident report's conclusions; petitions must specify errors and provide supporting evidence; the Board may affirm, modify, or reconsider; NTSB may also correct factual information in published reports on motion or on its own initiative — a quality control mechanism for a record that can affect litigation, regulation, and insurance for years after publication

  Part 845 is distinct from Part 821 (certificate action proceedings) in a critical way: Part 845 hearings are investigative and non-adversarial; no one's license is on the line, no penalties are being imposed, and the outcome is a factual record, not a judgment. The same accident that triggers a Part 845 investigative hearing may simultaneously trigger a Part 821 certificate action against the pilots or controllers involved — but those are separate proceedings before separate adjudicators.

• 49 CFR Part 826 — Rules Implementing the Equal Access to Justice Act of 1980 for NTSB Proceedings (22 sections — the NTSB's implementation of EAJA's attorney fee award framework for airmen who prevail against the FAA in NTSB certificate proceedings):

  The Equal Access to Justice Act (5 U.S.C. § 504) entitles prevailing parties in adversary adjudications before federal agencies to recover attorney fees and expenses — unless the government's position was substantially justified or special circumstances make an award unjust. For NTSB, the relevant adversary adjudications are certificate action proceedings under Part 821 where an airman challenges FAA's decision to suspend or revoke their certificate.

  • § 826.1 — Purpose: applies EAJA to adversary adjudications before the NTSB in which the FAA is a party; an eligible airman who prevails over the FAA in a Part 821 certificate proceeding may receive an award of attorney fees unless the FAA's position was substantially justified
  • § 826.4 — Eligibility: the applicant's net worth must not exceed $2 million (for individuals) or $7 million (for entities including their affiliates); net worth is measured at the time the adversary adjudication was initiated; most individual airmen qualify since the net worth cap is designed to exclude large corporations from EAJA benefits
  • § 826.5 — Proceedings covered: certificate suspension and revocation actions under 49 U.S.C. §§ 44703 and 44709 where the FAA is represented and the airman is eligible; NTSB investigative hearings (Part 845) are not covered because they are not adversary adjudications — no adverse party, no penalty
  • § 826.13 — Substantially justified standard: the FAA's position is substantially justified if it had a reasonable basis in law and fact; the FAA need not have won to be substantially justified — positions that were reasonable but ultimately incorrect may still satisfy the standard; the NTSB ALJ or Board makes the substantial justification determination on the EAJA application after the certificate proceeding concludes
  • § 826.21–826.22 — Application requirements: the EAJA application must identify the proceeding, show that the applicant prevailed, state the applicant's net worth (or attach an IRS 501(c)(3) ruling), and include itemized attorney fee documentation; the application is filed with the NTSB within 30 days after the final order in the certificate proceeding
  • § 826.32 — Fee cap: attorney fees are capped at $125/hour unless the NTSB finds that an increase in the cost of living or a special factor (specialized expertise in aviation law, limited availability of qualified attorneys) justifies a higher rate

  NTSB's EAJA program is practically significant for the general aviation community: a certificated pilot who successfully defeats an emergency FAA suspension may have grounds to recover substantial legal fees — particularly if the FAA's enforcement position was poorly supported. The 30-day filing deadline is strictly jurisdictional; an airman who misses it loses EAJA rights even if the merits of their fee claim would have been strong.

• 49 CFR Part 825 — Rules of Procedure for Merchant Marine Appeals from Decisions of the Commandant, U.S. Coast Guard (9 sections — the NTSB's appellate review framework for merchant mariner credential revocations and suspensions; the maritime counterpart to Part 821's airman certificate proceedings):

  Under 49 U.S.C. § 1903, the NTSB is the final appellate body for Coast Guard administrative decisions revoking, suspending, or denying a merchant mariner's license, certificate, document, or register. When a Coast Guard administrative law judge rules against a mariner and the Commandant sustains that decision on internal appeal, the mariner may seek NTSB review as a second-level appeal.

  • § 825.1 — Applicability: covers appeals from Commandant decisions on or after April 1, 1975, sustaining orders of revocation, suspension, or denial under the merchant marine credentialing statutes (R.S. 4450; Act of July 15, 1954; and Section 4 of the Great Lakes Pilotage Act)
  • § 825.5 — Notice of appeal: must be filed with the NTSB within 10 days after service of the Commandant's decision; simultaneously, a copy must be served on the Commandant; the notice must state the party's name, the Commandant's decision number, and the grounds for appeal; the Board may extend the filing period on good cause
  • § 825.10 — Referral of record: upon receiving a notice of appeal, the Commandant must immediately transmit the complete record — charges, testimony transcript, exhibits, briefs, the ALJ decision, and the Commandant's decision — to the NTSB; intra-agency staff memoranda advising the Commandant are excluded
  • § 825.15 — Issues on appeal: the NTSB may only consider four grounds: (a) a finding of material fact is erroneous; (b) a necessary legal conclusion lacks governing precedent or is contrary to law; (c) a substantial and important question of law, policy, or discretion is involved; or (d) a prejudicial procedural error has occurred; the narrow grounds mirror appellate review standards and preclude de novo fact-finding by the Board
  • § 825.20 — Briefs: the appellant must file a brief within 20 days of filing the notice, specifying the disputed fact findings, asserted errors of law, asserted abuses of discretion, and the relief requested; the Coast Guard may reply within 15 days; failure to file a timely brief allows the Board to dismiss the appeal
  • § 825.25 — Oral argument: not routinely granted; a party requesting oral argument must do so in the brief; the Board grants oral argument only on good cause
  • § 825.30 — Action by the Board: if no reversible error is found, the Commandant's decision is affirmed; if reversible error is found, the Board may either dismiss the charges (if the error is incurable) or remand to the Commandant for further consideration (if curable); the Commandant on remand may act pursuant to the remand order or further remand to an ALJ
  • § 825.40 — Ex parte communications: prohibited from the time the matter is noticed for hearing; no interested person outside the Board may contact Board decisional employees on the merits; violations are subject to disqualification or other sanctions

  Part 825 occupies a role in the maritime credentialing system parallel to Part 821 in aviation. A merchant mariner who has exhausted Coast Guard administrative remedies — ALJ hearing, Commandant's review — may appeal to the NTSB on the same limited appellate grounds available under Part 821. The NTSB's role as final administrative appellate body for both airmen (Part 821) and mariners (Part 825) reflects Congress's decision to give the independent safety board a check on both FAA and Coast Guard credentialing decisions, ensuring that license revocations face independent review outside the agency that brought the action.

• 49 CFR Part 850 — Coast Guard–National Transportation Safety Board Marine Casualty Investigations (9 sections — the joint NTSB/Coast Guard framework governing how major marine casualties are investigated; implements 49 U.S.C. § 1903):

  • § 850.5 — Definitions: a major marine casualty is one involving a non-public vessel that results in (a) the loss of six or more lives; (b) the loss of a mechanically propelled vessel of 100 or more gross tons; (c) property damage initially estimated at $500,000 or more; or (d) a serious threat to life, property, or the environment by hazardous materials (as determined by the Commandant with NTSB Chairman concurrence)
  • § 850.10 — Preliminary investigation by the Coast Guard: the Coast Guard conducts the preliminary investigation of all marine casualties and determines whether the casualty is a major marine casualty, or involves a public vessel and a nonpublic vessel with at least one fatality or $75,000 in property damage — the threshold that triggers mandatory NTSB notification
  • § 850.15 — NTSB investigation: the Board may investigate any major marine casualty or casualty involving public and nonpublic vessels; the Board must conduct the investigation when the casualty involves a Coast Guard vessel and a nonpublic vessel with at least one fatality or $75,000 in property damage; for other qualifying casualties, NTSB and the Commandant may agree that the Board will lead the investigation
  • § 850.3 — Parallel but non-duplicative investigations: the Coast Guard's independent statutory investigative authority (under R.S. 4450) is not diminished — both agencies may investigate the same casualty, but coordinate to minimize duplication; this mirrors the FAA/NTSB parallel authority structure in aviation, where NTSB leads the accident investigation while the FAA simultaneously conducts a regulatory compliance review
  • § 850.25 — Coast Guard investigation for the Board: when NTSB does not lead the investigation, the Board may (within 48 hours of notification) request that the Coast Guard conduct the investigation on NTSB's behalf; NTSB designates a participant who may call witnesses, request additional evidence, and recommend investigation scope; the Coast Guard provides the Board with the investigation record, and the NTSB then issues its own cause determination
  • § 850.20 — Cause or probable cause: after either a direct Board investigation or receipt of the Coast Guard record, the NTSB determines cause or probable cause and issues a public report — the same output as for aviation and railroad investigations; the report may include safety recommendations to the Coast Guard, the maritime industry, or Congress
  • § 850.35 — Public records: Coast Guard investigation records are available under 49 CFR Part 7; NTSB records are available under 49 CFR Part 801

  Part 850 governs the NTSB's highest-profile marine investigations — including the El Faro cargo ship sinking (2015, 33 lives lost), the Conception dive boat fire (2019, 34 lives lost), and the Dali bridge collision in Baltimore (2024, 6 deaths). For any major maritime disaster, the Part 850 framework determines whether the NTSB will lead its own full investigation, partner with the Coast Guard, or rely on the Coast Guard's investigation record. NTSB's marine accident reports carry the same weight as its aviation reports — they are the authoritative public record of cause and the primary driver of maritime safety recommendations.

Pending Legislation

No standalone NTSB reform bills pending in the 119th Congress.

Recent Developments

• Alaska Airlines 737 MAX 9 door plug blowout (January 2024): NTSB investigation of the in-flight door plug failure on Alaska Airlines Flight 1282 revealed manufacturing quality control failures at Boeing's Renton, Washington plant. The NTSB issued safety recommendations to Boeing, the FAA, and Alaska Airlines, and its findings contributed to FAA's enhanced oversight of Boeing production and the broader Boeing quality crisis that dominated aviation safety discussions through 2024-2025.
• Baltimore Francis Scott Key Bridge collapse (March 2024): The container ship Dali struck a support column of the Francis Scott Key Bridge, killing 6 construction workers. NTSB launched a major marine investigation covering vessel systems failure, crew response, and bridge protection standards. The investigation is examining whether electrical failures disabled the ship's ability to drop anchor in time to prevent the collision — findings will affect bridge protection standards nationwide.
• East Palestine, Ohio, derailment aftermath (2023-2025): The Norfolk Southern derailment generated the NTSB's most comprehensive railroad safety investigation in years. Recommendations covered automatic hot box detector spacing on high-risk corridors, wayside detection system data sharing with carriers and regulators in real time, DOT-117 tank car requirements for hazardous materials, and train length and tonnage limits. The derailment drove the proposed RAIL Safety Act and accelerated FRA rulemaking.
• NTSB leadership and DOGE (2025): The Trump administration's DOGE efficiency initiatives raised questions about NTSB staffing levels and budget, given the agency's relatively small size (~400 staff, ~$130M annual budget). NTSB leadership publicly stated that investigation capacity is not reducible without sacrificing statutory mandates. Aviation safety groups and Congress members from both parties have supported maintaining investigation capacity after high-profile accident spikes in 2024.