"Wait staff employee", a person, including a waiter, waitress, bus person, person in a quick service restaurant who prepares or serves food or beverages as part of a team of counter staff or any other counter employee who:
"Service employee", a person who works in an occupation in which employees customarily receive tips or gratuities, and who provides service directly to customers or consumers, but who works in an occupation other than in food or beverage service, and who has no managerial responsibility.
"Service bartender", a person who prepares alcoholic or nonalcoholic beverages for patrons to be served by another employee, such as a wait staff employee.
"Employer", any person or entity having employees in its service, including an owner or officer of an establishment employing wait staff employees, service employees, or service bartenders, or any person whose primary responsibility is the management or supervision of wait staff employees, service employees, or service bartenders.
"Patron", any person who is served by a wait staff employee or service employee at any place where such employees perform work, including, but not limited to, any restaurant, banquet facility or other place at which prepared food or beverage is served, or any person who pays a tip or service charge to any wait staff employee, service employee, or service bartender.
"Service charge", a fee charged by an employer to a patron in lieu of a tip to any wait staff employee, service employee, or service bartender, including any fee designated as a service charge, tip, gratuity, or a fee that a patron or other consumer would reasonably expect to be given to a wait staff employee, service employee, or service bartender in lieu of, or in addition to, a tip.
"Tip", a sum of money, including any amount designated by a credit card patron, a gift or a gratuity, given as an acknowledgment of any service performed by a wait staff employee, service employee, or service bartender.
Nothing in this section shall prohibit an employer from imposing on a patron any house or administrative fee in addition to or instead of a service charge or tip, if the employer provides a designation or written description of that house or administrative fee, which informs the patron that the fee does not represent a tip or service charge for wait staff employees, service employees, or service bartenders.
Mass. Gen. Laws ch. 149, § 152A