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2. Regulation 11(2), dealing with automatic railway level crossings, extends the significance of the traffic sign controlling certain vehicles approaching such crossings where the crossing is without barriers but is monitored remotely and automatically by the operation or light signals.
3. Regulation 12 extends the range of permitted variants for the indications given by many signs.
4. The provisions as to the illumination or signs by lighting and by the use or reflecting material have been rearranged and a number of requirements have been relaxed (Regulations 15 to 19).
6. Regulation 37 introduces new provisions enabling the hashing amber lights prescribed in sub-paragraph (2)(c) to be used when school children are crossing the road under the supervision of in teacher or other school officer a traffic warden or a constable in uniform.
7. A number of new signs are introduce into schedules 1 to 5 including a sign warning or the presence or blind, elderly or handicapped pedestrians, signs for controlling the movement or goods vehicles or specified maximum gross metric weight, signs indicating the closure of a lane or lanes of a carriageway and a road marking for use with the 'STOP' sign shown in diagram 601.1

Part II of the Instrument re-enacts with amendments the General Directions 1975. The principal changes are:

1. A reduction is made in the number of signs which are required to have their sites approved by the secretary or state prior to their erection (Direction 5).
2. Direction 11(4) provides that where certain signs may be varied to display metric units the signs so varied must always the used in conjunction with signs of a similar type displaying imperial units.
3. Direction 32, dealing with the period or time temporary signs may continue to be displayed on site, ceases to apply to signs other than those used in accordance with the requirements of Regulation 27 (about certain) temporary signs).
4. There is no longer any requirement for the siting or light signals to be approved by the Secretary of State (except in certain cases relating to the signals erected at railway level crossings)(Regulation 31(4))(Direction 34(1)).Only light signal apparatus which conforms to a type which has been approved by the secretary or state may be used (Direction 34(l)(b)).