This justification and approval (J&A) authorizes and approves a 12-month extension to the period of performance, using other than full and open competition, for the Natural Resources (NR) Multiple Awa... This justification and approval (J&A) authorizes and approves a 12-month extension to the period of performance, using other than full and open competition, for the Natural Resources (NR) Multiple Award Service Contract (MASC) (overall referred to as the “NR MASC”) N62473-20-D-0021, N62473-20-D-0022, and N62473-20-D-0023.