Flight time Augmented few

[globallocal]

Flight time Augmented Crew

Hi,

Can someone enlighten me to CASA's theory/rule on the below regarding the second sector must be more than 9 hrs block.
this is in relation to a CAO 48 Exemption.

2.3.4 Where a (continuous) flight duty period is scheduled to exceed 14 hours:

(a) not more than two sectors shall be rostered:

(b) the last sector (if more than one) block time shall be at least nine hours.


as Pauline Hanson once said "please explain!'

thanks in advance.

GL