The proposal;
https://assets.publishing.service.g...a/file/836116/Explanatory_Note_Accessible.pdf
"Building on the existing practice established to maintain the Single Epidemiological Unit (SEU) on the island of Ireland, Northern Ireland would align with EU SPS rules, including those relating to the placing on the market of agri-food goods."
That in effect leaves NI under EU rules.
"Agri-food goods entering Northern Ireland from Great Britain would do so via a Border Inspection Post or Designated Point of Entry as required by EU law, building on the provisions that already exist to support the SEU. They would be subject to identity and documentary checks and physical examination by UK authorities as required by the relevant EU rules."
"To support this system of controls at the boundary of the zone, traders moving goods from Great Britain to Northern Ireland would need to notify the relevant authorities before entering Northern Ireland..."
That is just like the backstop.
"In addition, Northern Ireland would also align with all relevant EU rules relating to the placing on the market of manufactured goods."
So again, NI is virtually being handed over to the EU to save the rest of the UK from its pesky rules and threat to sovereignty. Then;
"The regulatory checks and controls taking place on goods entering Northern Ireland from Great Britain would not apply when goods enter Ireland from Northern Ireland. The UK would not apply corresponding checks or controls on goods entering Northern Ireland from Ireland."
NI is being more closely aligned with the Republic.
Johnson's plan is to give NI away.