1967 c. 8; sections 2(1) and 3(1) and (2) were amended by the European Communities Act 1972 (c. 68), section 4(1) and Schedule 4, paragraph 8; section 3(4) was substituted by section 42 of the Criminal Justice Act 1982 (c. 48).

Section 1(2)(b) of the Plant Health Act 1967 provides that the competent authority in England and Wales for the purposes of that Act is the Minister for Agriculture, Fisheries and Food. By virtue of the Transfer of Functions (Wales) (No.1) Order 1978 (S.I. 1978/272), article 2(1) and Schedule 1, the functions of the Minister of Agriculture, Fisheries and Food under the Plant Health Act 1967 were, so far as they are exercisable in relation to Wales, transferred to the Secretary of State for Wales. These functions of the Secretary of State for Wales were then transferred to the National Assembly for Wales under the National Assembly for Wales (Transfer of Functions) Order 1999 (S.I. 1999/672). The functions transferred to the National Assembly for Wales by SI 1999/672 are now exercisable by the Welsh Ministers by virtue of s162 and para 30 of Schedule 11 of the Government of Wales Act 2006 c. 32.