Any annoucement including a blog post or company/verifiable employee social media post is fine. Time ends at 00:00 on January 1, 2024, Pacific Time. Note that this market depends on a public announcement, so it still resolves to NO if 5 million miles are announced in 2024 even if those miles were achieved in 2023.

(Note that driverless miles are NOT the same as self-driving miles. The later includes safety driver miles)