The test of whether the nature of the work prevents an employee from being relieved of all duty is an objective one.
An employer and employee may NOT agree to an on-duty meal period unless, based on objective criteria, any employee would be prevented from being relieved of all duty based on the necessary job duties.
Some examples of jobs that fit this category are a sole worker in a coffee kiosk, a sole worker in an all-night convenience store, and a security guard stationed alone at a remote site.
David Payab, Esq. from The Law Offices of Payab & Associates can be reached @ (818) 918-5522 or by visiting http://payablaw.com/