wont L &. Theat there be « continuous rigid screrning Jointly by the Test Director and the Yash Fores Commander to insure that cbscrvations are limited to these which will not sericusly interfere with tho primary purpose of the test, and for which a scicntific or militery need exists which can be secured only by dircet obscrvation cf an atomic explusion. b. That all observational requirements be "frozon" as of 1 November 1947. 5b Enelocure A" ¥