Document ID: chunk:federal_register_of_legislation:F2024C01065:body:0:p12
Version: federal_register_of_legislation:F2024C01065
Segment Type: other
Provision Reference: 
Character Range: 28722–31587

- for a road vehicle entered onto the Register of Approved Vehicles under the Road Vehicle Standards Act 2018, the date of that entry. Otherwise, the date the vehicle is available in Australia in a condition that will enable an 'Identification Plate' to be lawfully affixed to the vehicle.

   DAYLIGHT OPENING - the maximum unobstructed opening through any glass aperture, including reveal or garnish mouldings adjoining the glass, according to a given direction or projection. If not specified the dimension will be the vertical projection (ADR 16).

   DAYTIME RUNNING LAMP - Means a higher intensity front position (side) lamps, which may be mandatory in some countries, for improved daytime conspicuity.

   DEMIST - the restoration of visibility following a 'Mist' condition, by the operation of 'Demisting' equipment and signified by a dry windscreen (ADR 15).

   DEPARTURE ANGLE - the smallest angle, in a side view of a vehicle formed by the level surface on which the vehicle is standing and a line tangent to the rear tyre 'Static Loaded Tyre Radius' arc and touching the underside of the vehicle rearward of the rear tyre.

   DESIGN LINE OF ACTION - the centre line of the 'Child Restraint' 'Upper Anchorage Strap', in side elevation and with 'Seat' installed, from the 'Shoulder Reference Point' to the 'Child Restraint Anchor Fitting' 'Interface Profile'.

   DIAGONAL PLY TYRE - a 'Pneumatic Tyre' in which the 'Cords' in the tyre 'Carcass' are laid at alternate angles which are substantially less than 90 degrees to the centreline of the 'Tread'.

   DIESEL ENGINE - an engine which works on the compression-ignition principle, and which operates on automotive diesel fuel.

   DIFFERENTIAL – a mechanism which transmits engine power to the drive axle(s), allowing the drive wheels to rotate at different speeds, imposing a negligible restriction on the speed difference (unless of a 'Limited-slip Differential' type).

   DILUTION FACTOR - a correction factor used in 'Exhaust Emissions 37/00' calculations; it is calculated by using Equation 7.14 of clause 37.7.3 of ADR 37/00 or Equation 14 of clause 10.3 of ADR 37/01 .

   DISTANCE ACCUMULATION FUEL - see 'Stabilisation Distance Accumulation Fuel'.

   DIURNAL BREATHING LOSS - the 'Fuel Evaporative Emissions' resulting from the daily variation in temperature to which the 'Fuel System' is exposed.

   DOG TRAILER - a trailer with 2 'Axle groups' of which the front 'Axle Group' is steered by connection to the drawing vehicle.

   DRAWBAR - portion of a trailer that connects the trailer body to the 'Coupling' for towing purposes.

   DRAWBAR LENGTH - horizontal distance from the centreline of the towing pivot to the centreline of the leading 'Axle Group' of the trailer.

   DRIVE TRAIN - The vehicle components which transmit engine power to the driven wheels (ADR 28).

   DRIVER'S