Australian Capital Territory Numbered Regulations Australian Capital Territory Numbered Regulations(a) if the measuring instrument is fixed—be carried out with the measuring instrument in its fixed position;
(b) if the measuring instrument is movable and has a base—be carried out with the measuring instrument on a level plane or, if this is not practicable, on a plane that is as nearly level as possible; or
(c) if the measuring instrument is transportable and the results obtained by its use are affected by gravity—be carried out so as to compensate for the conditions applicable in the region in which it is used or to be used.