When Phoenix residents begin using Waymo's self-driving ride-hailing service next year, they'll be insured by Trov, a five-year-old startup that provides custom coverage. Waymo's own commercial insurance policies will cover damages to the car and from accidents.

Why it matters: The eventual arrival of self-driving cars will have a huge impact on auto insurance.

• If car ownership significantly declines in favor of ride-hailing services, passengers will need protection for lost items, medical needs while onboard, and so on.
• Insurance for the cars themselves is also expected to be heavily affected, especially as more self-driving cars hit the road, reducing accidents caused by human errors.