1.,Council Directive 71/320/ EEC of 26th July 1971 (relating to the braking devices of certain categories of motor vehicles and their trailers),1st July 1973,
2.,Council Directive 71/320/ EEC of 26th July 1971 as amended by Commission Directive 74/132/ EEC of 11th February 1974,1st October 1974,
3.,Council Directive 71/320/ EEC of 26th July 1971 as amended by Commission Directives 74/132/ EEC of 11th February 1974 and 75/524/ EEC of 25th July 1975,1st January 1976,
4.,Council Directive 71/320/ EEC of 26th July 1971 as amended by Commission Directive 74/132/ EEC of 11th February 1974, 75/524/ EEC of 25th July 1975 and 79/489/ EEC of 18th April 1979 ,1st January 1980,


The Public Service Vehicles (Licences and Certificates) Regulations 1952,S.I. 1952/900,Parts IV, V and VI and Schedules 1 and 2,
The Public Service Vehicles (Conditions of Fitness, Equipment and Use) Regulations 1972,S.I. 1972/751,The whole Instrument,
The Public Service Vehicles (Conditions of Fitness, Equipment and Use) (Amendment) Regulations 1976,S.I. 1976/726,The whole Instrument,
The Public Service Vehicles (Conditions of Fitness, Equipment and Use) (Amendment) Regulations 1980,S.I. 1980/141,The whole Instrument,
The Public Service Vehicles (Conditions of Fitness, Equipment and Use) (Amendment) (No.2) Regulations 1980,S.I. 1980/1097,The whole Instrument,

Paragraph (1)(e),A vehicle registered before 19th June 1968.,
Paragraph (1)(d),A double-decked vehicle registered before 19th June 1969 if no part of any gangway which serves as a joint means of access from any entrance to the upper and lower decks is less than 910 millimetres in width.,
Paragraph (1)(a), (c) and (g)C.,A vehicle registered before 1st April 1959 if the width of every gangway is not less than 305 millimetres up to a height of 765 millimetres above the level of the deck and not less than 355 millimetres above that height.,
Paragraph 1(c),A vehicle registered after 1st April 1959 and before 19th June 1968 if no part of any gangway which is within 915 millimetres of an exit (other than an emergency exit) to which it leads is less than 530 millimetres in width.,