Post-Brexit border rules on imports from the EU, due to come into force on 30 April have been delayed, leaving businesses confused, and  Britain’s border plans in “complete disarray,” according to The Guardian.

The rules will require many meat, dairy and plant products from the EU to be physically checked at government border control posts (BCPs). But trade bodies have said fresh confusion about when the checks would begin were “incredibly challenging” for business planning, while others said serious questions remained about the government’s readiness for the regime.

Martin McTague, the chair of the Federation of Small Businesses, said the system was in “complete disarray” and businesses were having to “decode messy and unclear messages” from Whitehall over whether they would face checks.

Under the rules, medium- and high-risk products, which include meat and dairy products, as well as most plants, could be subject to checks at the borders as part of a move to enhance the U.K.’s biosecurity.

The Financial Times reported that the government would not “turn on” the checks on 30 April in an attempt to avert delays because border systems were not fully ready.

However, the U.K. government insisted the checks would be commencing on 30 April but indicated they would be focusing on higher-risk products and scaling up checks on other products in a “sensible and controlled way”.

There have already been five previous delays to the implementation of the checks, which were initially set to come in in July 2021.