http://www.legislation.gov.uk/nisr/2005/270/contents/made

The Public Service Vehicles (Conditions of Fitness, Equipment and Use) (Amendment) Regulations (Northern Ireland) 2005

Vehicles

Traffic management

Government Printer for Northern Ireland

2016-09-12

ROAD TRAFFIC AND VEHICLES

These Regulations amend the Public Service Vehicles (Conditions of Fitness, Equipment and Use) Regulations (Northern Ireland) 1995 so as to require every vehicle licensed for public hire in the City of Belfast to have an effective means of communication between the passenger and the driver and where there is a sliding window fitted in the partition between the driver’s seat and the passengers' compartment, the maximum width of the window opening shall not exceed 11.5 centimetres.