Sections 88B to 88H apply to—
a person who, on or after 28th January 2011, becomes subject to the notification requirements of this Part for an indefinite period by virtue of section 80(1) or a notification order made under section 97(5); and
a person who immediately before that date was subject to the notification requirements of this Part for an indefinite period by virtue of—
section 80(1);
section 81(1); or
a notification order made under section 97(5).
A person who falls within subsection (1)(a) or (b) is referred to in sections 88B to 88G as a "relevant sex offender".