 Trade studies began in January 2013 and were to be conducted for six months, but they were extended another six months.With the service's normally tight budget combined with sequester cuts, giving priority to the ACV may take funding and resources from other programs.The plan to begin buying 5,500 Joint Light Tactical Vehicles around 2019 could have been replaced with retaining and modernizing up-armored Humvees and keeping the large numbers of relatively young Oshkosh M-ATVs.