An "oversight" by Hastings District Council led to pro-amalgamation material being left on its website in breach of Local Government Commission guidelines, the council said yesterday.
The page - outlining why the council supported a merger of Hawke's Bay's local authorities - was taken down yesterday, shortly after Hawke's Bay Today asked why it had not been removed.
Under the Local Government Act, councils are not allowed to promote or oppose amalgamation once the commission has issued a final proposal affecting their area.
Earlier this month the commission issued a final proposal in favour of Hawke's Bay's five councils being merged into a single local authority from November next year.
The proposal will be the subject of a binding region-wide poll on September 15.