Chapter 7--
insert--
'(1) This section applies to required information for a petroleum tenure if the required information is lodged before the commencement of this section.
'(2) Despite section 51(4), the confidentiality period for the required information is the confidentiality period mentioned in section 51(2) of the pre-amended regulation.
'(3) In this section--
pre-amended regulation means this regulation as in force immediately before the commencement.'.