sec.172What are the transitional notional sub-blocks of an authority to prospect

### sec.172 What are the transitional notional sub-blocks of an authority to prospect The transitional notional sub-blocks , of an authority to prospect, are the sub-blocks stated in the instrument for the authority at the start of its current term. However, the transitional notional sub-blocks do not include any sub-block stated in the instrument that is completely within the area of a lease under this Act or a 2004 Act lease. For subsection (1), if the instrument— states that the authority’s area includes land within a block; but does not include or exclude any particular sub-block within that block; the reference to the block is a reference to all sub-blocks within the block, other than any sub-block that is completely within the area of another 1923 Act petroleum tenure or a 2004 Act petroleum tenure. s 172 ins 2004 No. 26 s 68 (sec.172-ssec.1) The transitional notional sub-blocks , of an authority to prospect, are the sub-blocks stated in the instrument for the authority at the start of its current term. (sec.172-ssec.2) However, the transitional notional sub-blocks do not include any sub-block stated in the instrument that is completely within the area of a lease under this Act or a 2004 Act lease. (sec.172-ssec.3) For subsection (1), if the instrument— states that the authority’s area includes land within a block; but does not include or exclude any particular sub-block within that block; the reference to the block is a reference to all sub-blocks within the block, other than any sub-block that is completely within the area of another 1923 Act petroleum tenure or a 2004 Act petroleum tenure. - (a) states that the authority’s area includes land within a block; but - (b) does not include or exclude any particular sub-block within that block;