California Civil Code
A carrier of persons for reward must use the utmost care and diligence for their safe carriage, must provide everything necessary for that purpose, and must exercise to that end a reasonable degree of skill.
A carrier of persons for reward is bound to provide vehicles safe and fit for the purposes to which they are put, and is not excused for default in this respect by any degree of care.
A carrier of persons for reward must not overcrowd or overload his vehicle.
A carrier of persons for reward must give to passengers all such accommodations as are usual and reasonable, and must treat them with civility, and give them a reasonable degree of attention.
A carrier of persons for reward must travel at a reasonable rate of speed, and without any unreasonable delay, or deviation from his proper route.