29 CFR § 531.50 - Statutory provisions with respect to tipped employees.
(a) With respect to tipped employees, section 3(m) provides that, in determining the wage an employer is required to pay a tipped employee, the amount paid such employee by the employee's employer shall be an amount equal to -
(1) the cash wage paid such employee which for purposes of such determination shall be not less than the cash wage required to be paid such an employee on August 20, 1996 [i.e., $2.13]; and
(2) an additional amount on account of the tips received by such employee which amount is equal to the difference between the wage specified in paragraph (1) and the wage in effect under section 206(a)(1) of this title.
(b) “Tipped employee” is defined in section 3(t) of the Act as follows: Tipped employee means any employee engaged in an occupation in which he customarily and regularly receives more than $30 a month in tips.