Company: CCIXW
Filing Date: 2025-12-05
Form Type: S-4/A
Source: 0001193125-25-309933
Chunk: 468

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-12-05
Form: S-4/A
Chunk 468
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 readiness for commercial launch. It draws from best practices in other safety‑critical industries, including aviation, nuclear, and automotive, and is designed to meet the rigorous safety expectations of regulators, customers, and the public.

Safety Case Framework (SCF)

The Safety Case Framework is structured around a hierarchy of safety claims, sub‑claims, and supporting evidence to demonstrate that SuperDrive can operate safely in defined conditions. The Safety Case Framework is organized around five core pillars:

Understand . Establishes safety foundations through structured analysis, system definition, and hazard identification.

Design . Integrates safety principles, redundancy, and fault tolerance into SuperDrive’s architecture and software.

Develop . Verifies and validates system performance using simulation, bench tests, closed‑course testing, and public road trials.

Prove . Measures safety performance through data analysis and continuous improvement of metrics and safety cases.

Deploy . Ensures safe deployment and maintenance through configuration control, release management, and in‑field monitoring.

This structured framework informs PlusAI’s engineering and operational practices and supports transparency with partners, regulators, and other stakeholders. Key elements of the framework are shared publicly to align with industry standards and to reinforce accountability in automated vehicle safety assurance.

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Progress against this framework is measured by Safety Case Readiness (“SCR”), an internally designed percentage‑based metric that aggregates how complete and mature the safety case is relative to commercial launch requirements. SCR reflects the extent to which SuperDrive’s architecture, processes, validation plans, and supporting evidence meet the thresholds required for safe deployment and was designed in part based on other market and industry practices.

As of the first half of 2025, PlusAI reached 86% SCR, up from 75% in the second half of 2024, and is targeting 100% SCR before its planned 2027 commercial launch.

Autonomous Performance Metrics

In addition to SCR, PlusAI tracks two complementary performance indicators that measure SuperDrive’s operational maturity in real‑world driving conditions:

Remote Assistance Free Trips (“RAFT”) . RAFT measures the percentage of autonomous trips completed without any intervention from a remote operator or an onboard safety driver on a specified commercial route. A trip is RAFT‑compliant if SuperDrive maintains full control from departure to arrival without human assistance. While remote assistance will be available, RAFT demonstrates SuperDrive’s operational independence, technical maturity, and readiness for scaled deployment.

Autonomous Miles Percentage (“AMP”) . AMP is a continuous measure of the percentage of total miles driven by SuperDrive under full