On 27 March 1941, the number of lend-lease ships was increased to 200 by the Defense Aid Supplemental Appropriations Act and increased again in April to 306, of which 117 would be Liberty ships.
Den 27. marts 1941 blev antallet af skibe under Lend-Lease lovgivningen øget til 200 (Defense Aid Supplemental Appropriations Act), og måneden efter forøget igen til 306, hvoraf 117 skulle være Liberty skibe.