# The Road Vehicles Lighting Regulations 1989, Paragraph 11

Extent: E+W+S

Tell-tale–
(a) One or more indicators on each side of a vehicle to which indicators are fitted shall be so designed and fitted that the driver when in his seat can readily be aware when it is in operation; or
(b) The vehicle shall be equipped with an operational tell-tale for front and rear indicators (including any rear indicator on the rearmost of any trailers drawn by the vehicle).

---
Source: https://www.legislation.gov.uk/uksi/1989/1796/schedule/7/part/I/paragraph/11 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-1989/schedule-7/part-I/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.