# Why Waymo's Tech is Still Level 4 Autonomy The critical gap between current capabilities and true self-driving - **Source:** [Engadget](https://www.engadget.com) - **Published:** 2026-08-22 - **Original article:** - **On Brifing:** https://brifing.si/s/b51f8c77-f410-4d24-b380-d354cd83abad ## The Core Difference Between Levels 4 and 5 Waymo's driverless vehicles qualify as Level 4 autonomy per SAE standards. While Level 4 enables full self-driving in predefined conditions, Level 5 removes all geographical and environmental limitations. Waymo's 6th-gen Driver handles extreme winter weather but remains confined to mapped areas. This operational boundary keeps it from achieving true full autonomy. ## SAE's 6-Level Classification System SAE's autonomy scale ranges from Level 0 (no automation) to Level 5 (full automation). Levels 1-2 provide driver assistance features. Level 3 permits conditional automation requiring human oversight. Level 4 operates independently within defined domains. Level 5 requires no boundaries - the system must handle all driving scenarios worldwide without restrictions. ## Operational Design Domain (ODD) Explained ODD defines the geographical, road and weather conditions where an autonomous system is designed to function. Waymo had to suspend operations during 2026 floods in Atlanta and San Antonio, revealing system limitations. SAE specifies Level 4 systems only assume driving responsibility within their ODD, while Level 5 has no such constraints. ## Waymo's Current Capabilities The Waymo Driver system handles all driving tasks - steering, braking and decision-making - without human intervention in urban environments. However, this functionality is currently limited to pre-mapped areas in 8 U.S. cities as of 2026. The system doesn't operate in rural areas or unmapped territories, maintaining its Level 4 classification. ## Challenges Toward Level 5 Achieving Level 5 requires flawless operation in all global conditions. Waymo's collision avoidance research shows even Level 4 systems face countless hazardous scenarios. Comprehensive testing for every possible situation remains impractical. Industry experts estimate Level 5 may take 10-15 more years due to these immense technical hurdles. ## Regulatory Landscape NHTSA explicitly states Level 5 technology isn't yet available for consumer vehicles. SAE levels describe capabilities rather than development timelines. Waymo's 2026 flood incidents highlighted how weather conditions remain a critical challenge. Current regulations don't yet accommodate fully autonomous vehicles operating without any boundaries. ## Competitive Landscape Waymo competes with Cruise and Tesla's Autopilot in the autonomous vehicle market. None claim Level 5 capability - Tesla's Full Self-Driving system is classified as Level 2. Industry consensus suggests no company has demonstrated true Level 5 functionality. Most players focus on expanding Level 4 ODDs rather than pursuing unbound autonomy. ## Future Investments Waymo continues expanding its ODD with the 6th-gen Driver system. However, reaching Level 5 requires breakthroughs beyond technology - including insurance models and regulatory frameworks. The company's $2.5B funding round in 2026 demonstrates ongoing commitment, but experts caution Level 5 remains a long-term aspiration rather than imminent reality. ## Sources covering this story - https://www.engadget.com/2240138/if-waymo-cars-are-level-4-automation-what-is-level-5/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._