NHTSA Proposes Removing Legacy Rollover and Side Airbag Tests from NCAP to Focus on Active Safety
The National Highway Traffic Safety Administration is proposing to drop two long-standing physical crash tests from its 5-Star Safety Ratings, arguing the tests have achieved their goals and resources should shift toward evaluating advanced driver assistance systems.
By Derya Kaplan
- Federal Safety Regulators
- Argue that legacy tests have achieved their goals and resources must shift to active crash avoidance.
- Automotive Industry Analysts
- Focus on the timeline and resource constraints delaying the full rollout of the new software ratings.
- Safety Hardware Engineers
- Emphasize the need to address the surge in pedestrian fatalities through new testing protocols.
The competing cases
Path 1: Retaining Legacy Physical Crash Tests
Maintaining the Fishhook rollover and SAB-OOP tests as active components of the 5-Star rating system.
For: Provides continuous verification of structural and dynamic baselines, ensuring automakers do not quietly degrade stability hardware to cut costs. Against: Consumes limited federal testing resources on scenarios with a near-100% pass rate, delaying the rollout of new safety metrics. Evidence: No vehicle has tipped up during NCAP testing since Electronic Stability Control (ESC) became standard across the fleet in 2012. Fits well when: The vehicle market is highly unregulated or experiencing an influx of untested, low-cost structural platforms. Does not fit when: The primary causes of roadway fatalities have shifted from structural failures to driver distraction and pedestrian impacts.
Path 2: Pivoting to Active ADAS Evaluation
Reallocating resources to test crash-avoidance software like automatic emergency braking and blind-spot intervention.
For: Directly targets the modern causes of crashes, providing buyers with comparative data on the software that actively prevents collisions before they occur. Against: Software updates can change a vehicle's performance post-testing, making static ratings less reliable over the car's lifespan, and the transition faces a one-to-two-year implementation delay. Evidence: Pedestrian fatalities increased by 57% between 2013 and 2022, highlighting a critical gap that legacy structural tests cannot address. Fits well when: Vehicles are increasingly software-defined and buyers need to differentiate between the effectiveness of competing driver-assistance suites. Does not fit when: A vehicle lacks the sensor architecture to support active safety, relying entirely on passive crashworthiness.
When the federal government announces it is dropping a dramatic, high-speed rollover crash test from its flagship safety ratings, the immediate assumption is that auto safety standards are backsliding. For a prospective car buyer walking onto a dealership lot, removing the famous "Fishhook" maneuver and side-airbag tests from the 5-Star Safety Ratings sounds like a dangerous concession to automakers. It feels as though the National Highway Traffic Safety Administration (NHTSA) is lowering the bar, allowing manufacturers to cut corners on structural integrity. The visual of a heavy SUV tipping onto two wheels during a sharp turn is deeply ingrained in the public consciousness, making the elimination of the test seem counterintuitive to anyone prioritizing family safety.[1]
But the reality of modern vehicle safety engineering is entirely different. NHTSA is proposing to remove these legacy tests from its New Car Assessment Program (NCAP) not because they no longer matter, but because they have already won the war they were designed to fight. Thanks to federally mandated electronic stability control (ESC)—a technology that automatically applies individual brakes to prevent a vehicle from spinning out—modern vehicles simply do not fail the dynamic rollover test anymore. In fact, the agency notes that no vehicle has tipped up during NCAP testing since ESC became standard across the entire light-vehicle fleet in 2012. The structural stability factor remains strong, rendering the physical Fishhook maneuver redundant.[1][3]
For the everyday driver, the genuine risks on the road have fundamentally shifted over the past two decades. You are far less likely to experience an untripped rollover on a highway off-ramp today than you are to back into an unseen pedestrian, drift into an occupied blind spot, or fail to brake in time for stopped traffic. Recognizing this shift, NHTSA's proposal redirects federal testing resources away from solved physical crash dynamics and toward evaluating Advanced Driver Assistance Systems (ADAS). By clearing the docket of tests that every car passes, the agency can focus its budget and personnel on the technologies that actually differentiate a safe car from an average one in the modern era.[2][6]
The Side Air Bag Out-of-Position (SAB-OOP) test is also on the chopping block for similar reasons. Introduced in 2003, it was originally designed to ensure that deploying side airbags wouldn't inadvertently injure children or small adults seated too close to the door panel during a crash. Today, sensor-driven smart airbags and advanced interior structural designs have made those specific deployment injuries a relic of early-2000s engineering. Continuing to run the SAB-OOP test consumes significant agency resources and manufacturer time without providing any meaningful differentiation for consumers, as the industry has long since engineered past the problem.[1][3]
The Side Air Bag Out-of-Position (SAB-OOP) test is also on the chopping block for similar reasons.
By removing these legacy evaluations, NHTSA's updated 10-year roadmap accelerates the integration of active crash-avoidance technology directly into the window sticker ratings. This includes rigorous new testing for pedestrian automatic emergency braking, lane-keeping assist, and blind-spot intervention. The urgency for this pivot is driven by grim real-world data: between 2013 and 2022, pedestrian fatalities surged by an alarming 57%, highlighting a critical safety gap that legacy structural tests simply cannot address. Protecting vulnerable road users now requires software that can see the road and react faster than a human driver.[4][6]
For a family cross-shopping midsize SUVs or electric vehicles, this regulatory pivot fundamentally changes what the 5-Star rating actually measures. Soon, the window sticker will reflect the software technologies that actively prevent the most common intersection collisions and fender-benders, rather than just confirming a baseline structural stability that every new car already possesses. It transforms the rating from a measure of survivability into a measure of avoidance, giving buyers a much clearer picture of which vehicles will actively help them navigate chaotic daily commutes.[3][6]
However, the shift is not instantaneous, and the transition period will require patience from safety advocates. The proposal notes that resource constraints and ongoing research requirements have caused a one-to-two-year delay in implementing the full crash-avoidance rating system. While the legacy tests will be phased out beginning with the 2027 model year, the comprehensive ADAS evaluations and updated Monroney labels will roll out gradually through 2035. This phased approach ensures that the new testing protocols are scientifically robust, but it also means consumers will experience a gap where legacy tests are gone before all new active tests are fully integrated.[2][5]
Ultimately, the evolution of the New Car Assessment Program mirrors the evolution of the automobile itself. The program is transitioning from evaluating a passive steel cage designed to survive a catastrophic impact, to rating an active, sensor-laden computer network designed to avoid the impact entirely. For buyers, the result will eventually be a safety rating that actually reflects the daily hazards of modern driving, ensuring that the vehicles of tomorrow are judged on their ability to prevent accidents rather than just endure them.[1][6]
Key takeaways
- NHTSA is proposing to remove the dynamic rollover and side airbag tests from its New Car Assessment Program.
- The agency argues these legacy tests have achieved their goals, with no vehicle tipping up in testing since 2012.
- Resources will be redirected toward evaluating Advanced Driver Assistance Systems like automatic emergency braking.
- The shift aims to address modern roadway hazards, including a 57% surge in pedestrian fatalities over the last decade.
- Legacy tests will be phased out beginning with the 2027 model year, while ADAS evaluations roll out through 2035.
- 2027
- Model year legacy tests are phased out
- 57%
- Increase in pedestrian fatalities (2013-2022)
- 2012
- Year ESC became standard, ending NCAP tip-ups
Sources
[1]Federal RegisterFederal Safety RegulatorsNew Car Assessment Program (NCAP); Removal of Dynamic Rollover Resistance Test and Side Air Bag Out-of-Position Testing; Updates to NCAP's 10-Year Roadmap
Read on Federal Register →
[2]SDV SectorAutomotive Industry AnalystsNHTSA proposes dropping rollover, side airbag tests to fund ADAS ratings
Read on SDV Sector →
[3]Vital LawAutomotive Industry AnalystsNOTICES—MOTOR VEHICLES—NHTSA proposes to remove legacy NCAP tests, update roadmap
Read on Vital Law →
[4]Humanetics GroupSafety Hardware EngineersNHTSA NCAP Updates Key Updates Overview
Read on Humanetics Group →
[5]Westlaw TodayAutomotive Industry AnalystsNHTSA PROPOSES TO REMOVE LEGACY NCAP TESTS, UPDATE ROADMAP
Read on Westlaw Today →
[6]NHTSAFederal Safety RegulatorsNHTSA Announces First Vehicle to Pass New Advanced Driver Assistance Systems Benchmark
Read on NHTSA →
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