In such a system, those unavoidable errors attributable to the survey process must inevitably result in any physical boundary marks placed being somewhat at variance with the true position of the boundaries as prescribed by the relevant co-ordinates. This instruction standardises the field marking colours to be used in the forest industry in Tasmania. A single clear, distinctive colour is allocated to each primary use in the table below. High visibility colour versions of flagging tapes should be used where available. Biodegradable tape should only be used for situations where high visibility and longevity is not critical.
Striped tape is prone to fading and therefore it is allocated to relatively short term uses.
In low light or heavy undergrowth situations the distance between individual pieces of tape placed in the field should be reduced to minimise the risk of boundaries being accidentally crossed. Night time operations should be scheduled away from boundaries where possible. In some situations it may be appropriate to use two tape colours together e.g. for a harvesting boundary which is also a Wildlife Habitat Strip the light blue tape may be supplemented with yellow and white striped tape. Forest Practices Plans must refer to the tape colours being used on a coupe. Site preparation boundary Light blue tape Indicates a boundary that must not be crossed by plantation site preparation machinery.