The Animal Health Act 1981 (Extension of Definition of Disease) (England) Order 2026 was made at 12.24pm on 28 April 2026 and, according to the legislation.gov.uk text, came into force immediately after it was made. Its operative change is narrow but legally important: for the purposes of the Animal Health Act 1981 as it applies in England, swine vesicular disease is added to the section 88(1) definition of 'disease'. That means the condition now falls within the statutory language used by the 1981 Act in England. Rather than setting up a separate control code, the Order changes the defined term on which the existing Act relies.
The Order was made by the Secretary of State using the power in section 88(2) of the Animal Health Act 1981. The instrument is signed by Hayman of Ullock, Parliamentary Under Secretary of State at the Department for Environment, Food and Rural Affairs, and the text records the exact making time as 12.24pm. One drafting point is worth noting. Article 1 states that the instrument extends to England and Wales, but article 2 limits the legal effect to the Animal Health Act 1981 as it applies in England. The explanatory note is explicit on this point, stating that the Order applies in England only.
In practical terms, the amendment affects any provision of the 1981 Act in England that depends on whether a condition falls within the statutory definition of 'disease'. By adding swine vesicular disease to that definition, the Order allows the Act's existing animal health regime to operate by reference to that disease where relevant. For enforcement authorities, veterinary officials and pig sector businesses, the immediate value is legal clarity. Swine vesicular disease is now expressly named within the Act's definition for England, giving a clearer statutory basis wherever the legislation turns on that term.
The drafting is deliberately limited. The instrument does not, in its own text, introduce new offences, set new compensation rules or restate the wider powers available under the 1981 Act. Its legal function is to amend a definition used across the existing statutory scheme. That may read as a modest change, but definition amendments often have wider operational significance than their length suggests. In this case, the Order widens the reach of the 1981 Act in England without rewriting the rest of the legislation.
The explanatory note states that no full impact assessment has been produced because no, or no significant, impact on the private, voluntary or public sector is foreseen. That is the government's assessment of the effect of the instrument itself, rather than a broader statement about the possible consequences of any future disease response. For regulated organisations, the signal is that ministers are presenting this as a technical legal update rather than a measure expected to create substantial new administrative burdens at commencement. Even so, the amendment changes the statutory footing on which later action in England could be taken under the 1981 Act.
The footnote to the legislation also records the transfer history for functions under the Animal Health Act 1981, noting their movement through the 1999 and 2002 transfer orders before resting with the Secretary of State. That does not change the substance of the 2026 instrument, but it sets out the formal chain of ministerial authority behind the Order. The policy position is therefore straightforward. From 28 April 2026, swine vesicular disease sits inside the statutory definition of 'disease' for the Animal Health Act 1981 in England. For legal teams, local enforcement bodies and livestock businesses, this is a concise amendment with immediate effect and clear consequences for how the Act is to be read.