The appropriate national authority may make such regulations as it sees fit to deal with any case where (apart from the regulations) there would be more than one owner or occupier of a hereditament or part or of land at a particular time.
Nothing in the following provisions of this section shall prejudice the generality of subsection (1) above.
The regulations may provide for the owner or occupier at the time concerned to be taken to be such one of the owners or occupiers as is identified in accordance with prescribed rules.
The regulations may provide that—
The regulations may include provision that prescribed provisions shall apply instead of prescribed provisions of this Part, or that prescribed provisions of this Part shall not apply or shall apply subject to prescribed amendments or adaptations.