Group 1 - The National Highway Traffic Safety Administration (NHTSA) has issued inquiries to Tesla regarding its Full Self-Driving (FSD) software and planned Robotaxi service, requiring a response by June 19, 2025 [1] - NHTSA's questions focus on the performance of FSD under low visibility conditions and how Tesla assesses the suitability of its vehicles and autonomous driving technology on public roads [1] - The investigation into Tesla's FSD software was initiated in October 2024, following reports of four traffic accidents related to FSD usage in low visibility situations [1] Group 2 - Tesla has reported that its FSD-based ride-hailing service is being tested in Austin, Texas, and the San Francisco Bay Area, completing over 1,500 trips and driving 15,000 miles [2] - CEO Elon Musk stated that the upcoming Robotaxi service will utilize an unreleased "unsupervised FSD" software [2]