DTC Tests 71-10, 71-11, 71-12, 71-13, 71-30, 71.31, 71-32, 71-33, 71-34, 71-35 and 71-70 were last mentioned in DTC planning documentation in March 1969.¹ The last seven tests were biological tests and would have been impacted by President Nixon's renunciation of the US biological weapons program on November 25, 1969. In late June 1971, in opening remarks at DTC's next annual planning conference (held over two years later), Commanding General, BG Etkin noted that the command's activities had decreased from seven "safari" tests conducted in FY 69 to just one joint test in FY 71.² Until 1976, fiscal years ran from 1 July of the previous year to 30 June of the fiscal year. BG Etkin therefore made his statement in the waning days of FY 71. DTC Test 70-73 was conducted from July through December 1970, at the beginning of FY 71, and is thus the one joint test conducted that fiscal year. DTC Tests 71-10, 71-11, 71-12, 71-13, 71-30, 71-31, 71-32, 71-33, 71-34, 71-35 and 71-70 are therefore presumed to have been cancelled.

¹ Summary Report of the Proceedings of the Eighth Annual Deseret Test Center Planning Conference, 3 Jul 69, Appendix 4.
² Report of the Ninth Annual DTC CINC/Services CB Coordination Conference, 22-24 June 1971, p. 1.