at which the employee is employed by the employer. (c) Restroom breaks (1) In general No employer shall employ any employee, who in any workweek is engaged in commerce or in the production of goods for commerce, or is employed in an enterprise engaged in commerce or in the production of goods for commerce, for a period of 4 hours without allowing the employee to take a reasonable break during such period to utilize the nearest functioning and accessible restroom. (2) Rate of compensation An employer shall compensate an employee described in paragraph (1) for a break described in such paragraph at the regular rate at which the employee is employed by the employer. (d) Collective bargaining agreements