This section sets out how an acquiring authority may be authorised to take temporary possession of land compulsorily under section 18(2).
The temporary possession of the land must be authorised by the type of instrument (the "authorising instrument") that would be required if the acquiring authority proposed to acquire that land compulsorily for the purposes for which it proposes to take temporary possession of that land.
Accordingly, the authorising instrument—
But in so far as an authorising instrument authorises the temporary possession of land, the instrument is not to be subject to special parliamentary procedure by virtue of any enactment applying that procedure to an instrument authorising the compulsory acquisition of land, unless the land which is proposed to be subject to temporary possession is held by the National Trust inalienably.
For the purposes of subsection (4)—
For the purposes of subsection (3)(c), the reference to compulsory acquisition does not include the compulsory acquisition of a right over land by creation unless section 18(2) applies in relation to the acquiring authority by virtue only of a power or authorisation to acquire a right over land by creation.
The authorising instrument must—
The authorising instrument does not need to include the dates of any particular period of temporary possession (but see section 20).