6. Where section 338 of the 1980 Act (saving for works, etc of dock, harbour and canal undertakers) or 339 of that Act(1) (saving for works etc of drainage authorities etc) applies to the exercise of any functions listed in paragraphs 1 to 4, those functions shall be construed as including any additional requirements imposed by those sections.
Section 339(1) and (4) were amended by the Environment Act 1995 (Consequential Amendments) Regulations 1996 (S.I. 1996/593), regulation 2 and Schedule 1 and by the Water Consolidation (Consequential Provisions) Act 1991, section 2 and Schedule 1, paragraph 36(2). Subsection (1) was also amended by the Water Act 1989, section 190(1) and Schedule 25, paragraph 62(13).