Definition of a Field Site

[radgovwa@sage.wt.com.au]

Definition of a Field Site

For such purposes as industrial radiography, borehole logging etc., 
radioactive sources and x ray equipment may be used at many varied locations.
Under Western Australia's Radiation Safety Act,both the radiation
producing equipment AND the premises where it is used must be registered
(sometimes known as owner licensed).

`Field sites' need to be defined. After all, how long can radioactive
substances be kept at any one location before a `field site' is considered `permanent'?

Does anyone know of any legal definitions that tackle this problem,
either for radiation use as in this case, or in any other relevant areas?

Barry Cobb