(02 Feb 2016, 1:30 pm)Dan wrote Yes there is.
(2) A regulated public service vehicle shall be fitted with a route number display on the rear of the vehicle
(3) Any route number display shall be capable of displaying
© characters that are provided with a means of illumination
https://www.whatdotheyknow.com/request/1...idance.pdf
Thanks for clarifying. I'll pass it on.