Class Justification and Approval (CJ&A) for the use of other than full and open competition pursuant to 10 U.S. Code 3204(a)(1), only one responsible source and no other supplies or services will sati... Class Justification and Approval (CJ&A) for the use of other than full and open competition pursuant to 10 U.S. Code 3204(a)(1), only one responsible source and no other supplies or services will satisfy agency requirements, to award a series of modifications under N00024-21-C-5322 to procure MK 20 Mod 1 Electro-Optical Sensor Systems and support equipment. Authority act under this CJ&A expires on September 30, 2028.