United States of America Updates Electric and Hydrogen Vehicles Safety Standards

United States of America has updated safety standards for electric and hydrogen vehicles, enhancing side impact protection, electric powertrain integrity, and hydrogen fuel system integrity through revised federal motor vehicle safety standards.

Updated U.S. Safety Standards for Electric and Hydrogen Vehicles: Compliance Overview

The U.S. Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) has revised Federal Motor Vehicle Safety Standards (FMVSS) to enhance side impact protection, electric powertrain integrity, and hydrogen fuel system integrity for electric and hydrogen vehicles. These updates primarily amend FMVSS No. 214 (Side Impact Protection), FMVSS No. 305a (Electric-Powered Vehicles: Electric Powertrain Integrity), and FMVSS No. 307 (Fuel System Integrity of Hydrogen Vehicles). Below is a structured compliance summary based on the provided regulatory sources.

1. Key Regulatory Changes

The final rule introduces the following updates:

2. Preemption and State Law

Express Preemption

• Under 49 U.S.C. 30103(b)(1), states may only adopt vehicle safety standards identical to FMVSS. Non-identical state standards addressing the same performance aspects (e.g., side impact protection) are preempted².
• Savings Clause: Compliance with FMVSS does not exempt manufacturers from state common law tort liability (e.g., lawsuits alleging higher safety standards)².

Implied Preemption

• State tort claims are not preempted unless they conflict with FMVSS (e.g., if a standard is both a minimum and maximum requirement). NHTSA does not intend this rule to preempt higher state standards¹.

3. Testing Requirements

Side Impact Test (FMVSS No. 214, No. 305a, No. 307)

• Barrier: Moving deformable barrier (MDB) as specified in FMVSS No. 214, Figure 2¹.
• Speed:
  • FMVSS No. 214/No. 305a: 53 ± 1.0 km/h¹.
  • FMVSS No. 307: 52.0–54.0 km/h (revised range)¹.
• Test Dummies: 49 CFR Part 572 dummies (e.g., 50th percentile male) positioned per S7.2.2 of FMVSS No. 214¹.
• Fuel/Electrolyte Spillage: Must not exceed S5.5 limits¹.

Rear Impact Test (FMVSS No. 301)

• Barrier Speed: 80 ± 1.0 km/h with 70% overlap¹.
• Spillage Limits: S5.5 applies¹.

4. Compliance and Enforcement

Effective Date

• July 6, 2026: All amendments take effect².
• Petitions for Reconsideration: Must be submitted by July 20, 2026².

Regulatory Flexibility

• Small Entities: No regulatory flexibility analysis required, as the rule removes obsolete text and imposes no new burdens².

Environmental Impact

• Categorical Exclusion: Under 23 CFR 771.118(c)(4), the rule is exempt from NEPA review (no significant environmental effects)¹.

5. Summary Answer

NHTSA’s final rule updates FMVSS No. 214, No. 305a, and No. 307 to strengthen side impact protection, electric powertrain integrity, and hydrogen fuel system safety, effective July 6, 2026². Key changes include:

• Side impact test speeds of 53 ± 1.0 km/h (FMVSS No. 214/No. 305a) and 52.0–54.0 km/h (FMVSS No. 307)¹.
• Preemption: States may not adopt non-identical standards, but common law tort claims are preserved unless they conflict with FMVSS².
• Testing: Uses 49 CFR Part 572 dummies and FMVSS No. 214 barrier specifications, with spillage limits under S5.5¹.

The rule does not impose new burdens, as it primarily removes obsolete requirements². Manufacturers must ensure compliance with the revised standards by the effective date.

Sources

1. ↩ members.wto.org — final measure / 26 03022 00 e https://members.wto.org/crnattachments/2026/TBT/USA/final_measure/26_03022_00_e.pdf
2. ↩ members.wto.org — final measure / 26 03021 00 e https://members.wto.org/crnattachments/2026/TBT/USA/final_measure/26_03021_00_e.pdf