The 9th Battalion left 46th Division in December 1940, and shortly afterwards became the lorried infantry element alongside the artillery of 1st Support Group in 1st Armoured Division. However, on 1 November 1941, the battalion was converted to the armoured car role as 112th Regiment Royal Armoured Corps. In common with other infantry units transferred to the Royal Armoured Corps, personnel would have continued to wear their Foresters cap badge on the black beret of the Royal Armoured Corps, and the regiment continued to add the parenthesis '(Foresters)' after the RAC title. Lieutenant-Colonel Lancaster remained in command during this period before returning to the House of Commons.