# Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999, Paragraph 7


(1) The motor vehicle comprised in the articulated vehicle must be being used for the conveyance of a loading unit as part of a combined transport operation, the loading unit being on a journey—
(a) to a railhead from which the loading unit is, as part of the operation, to be transported in a relevant manner by railway pursuant to a relevant contract made before the journey began; or
(b) from a railhead to which the loading unit has, as part of the operation, been transported in a relevant manner by railway; or
(c) to a harbour from which the relevant receptacle is, as part of the operation, to be transported by sea pursuant to a relevant contract made before the journey began; or
(d) from a harbour to which the relevant receptacle has, as part of the operation,been transported by sea.
(2) If the loading unit is a bi-modal vehicle, the semi-trailer comprised in the articulated vehicle must be the bi-modal vehicle in its semi-trailer mode.
(3) If the loading unit is a relevant receptacle, the relevant receptacle must be being carried on the semi-trailer comprised in the articulated vehicle.
(4) There must be carried in the cab of the motor vehicle a document or documents—
(a) if the vehicle is on a journey to a railhead, specifying the railhead, the date the contract was made and the parties thereto;
(b) if the vehicle is on a journey from a railhead, specifying the railhead and the date and time at which the loading unit was collected from that railhead;
(c) if the vehicle is on a journey to a harbour, specifying the harbour, the date the relevant contract was made and the parties thereto; and
(d) if the vehicle is on a journey from a harbour, specifying the harbour and the date and time at which the receptacles were collected from that harbour.

---
Source: https://www.legislation.gov.uk/nisr/1999/454/schedule/14/paragraph/7 (the official version)
Page: https://openlegislation.uk/motor-vehicles-construction-and-use-regulations-northern-ireland-1999/schedule-14/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.