Order # 562 of the HQ commander responsible for the security of object # 1 R. Yu. Didenko.
Chemical Protection Unit # 423: relocate from sector B103 to sector A19 to conduct field testing of Perin B3 chemical solution in near combat conditions. Colonel P.P. Slavin, unit commander, is responsible for conducting the tests. Lieutenant Colonel K.S. Valov, deputy unit commander, is responsible for transportation and security.