I got a meritorious rejection for a PDF (chemistry) also but got pre-approved for a IRDF and just recently, approved to be placed on the inventory for a VF to postdoc in a Canadian national lab. For the VF, they want me to redo my location of tenure and justification for location of tenure to be placed on the VF inventory. Has anybody done this? I presume I have to contact the people in the national lab to say i'm interested in postdoc'ing in their lab but im not so sure.