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The former partial designation of this route was D65.
Currently, continuous section between Trnava and bypass of Banská Bystrica is in operation. A linking section to Ružomberok and consequently back to motorway D1 has been planned since 2008. Both sections, Nitra - Hronský Beňadik and bypass of Banská Bystrica, were built, and are operated as a public-private partnership project, unlike the rest of the Slovak motorway and expressway network.
