· 2.b.1. (u) tf all american. 2.b.1 .a. (u) tf aa to continue 'primary' searches in...
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· 2.b.1. (u) tf all american. 2.b.1 .a. (u) tf aa to continue 'primary' searches in zone until complete. 2b.1 b. (u) tf all american developed boundaries and search grid systems