The city's Taxi and Limousine Commission voted unanimously to amend existing regulations to require that drivers maintain "a professional appearance."
The previous rule had prohibited specific clothing from being worn as outerwear, such as underwear, tank tops, and swimwear.
The new rule emphasizes broad parameters, that a driver's overall appearance has to be neat, clean and professional. TLC Commissioner David Yassky says ethnic and religious garb are welcome.
Drivers will face a $25 fine for any violation, but Yassky insisted before Thursday's vote that there would be no fashion police.