Another example of CAs anti-business climate.
http://www.leginfo.ca.gov/cgi-bin/displaycode?section=lab&group=00001-01000&file=500-558
Does not seem to address your question directly.
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But - our company guidelines for non-exempt are:
Travel for Work- If an employee is required to report to the office before proceeding to an off-premises work site, all of the time from the moment of reporting until the employee is released to proceed directly to his or her home is time subject to the control of the employer, and constitutes hours worked.
Extended Travel Time- If an employee is required to attend an out-of-town business meeting, training session or any other event, the time spent driving, or as a passenger on an airplane, train, bus, taxi or car shall be paid.
In traveling to and from this out-of-town event, the time spent waiting to purchase a ticket, check baggage or board, is also considered as time worked.
On the other hand, time spent taking a break from travel in order to eat a meal, sleep, or engage in purely personal pursuits not connected with traveling or making necessary travel connections (such as, for example, spending an extra day in a city before the start or following the conclusion of a conference in order to sightsee), is not compensable.
If the employee's travel from his home to the airport is the same or substantially the same as the distance (and time) between his home and usual place of reporting for work, the travel time would not begin until the employee reached the airport.
The employee must be paid for all hours spent between the time he arrives at the airport and the time he arrives at his hotel. No further "travel" hours are incurred after the employee reaches his hotel and is then free to choose the place where he will go.