Voitec presided upon the MAN session of August 21, 1965, which passed a new constitution, enshrining Romania's claim to have achieved real socialism. In his closing speech, he referred to this as a "historic session", and argued that the new organic law had increased the political and social profiles of MAN deputies. On August 29 of the following year, he was assigned to the honor guard overseeing Sălăjan's funeral. Also in 1966, Voitec received the Order of Tudor Vladimirescu, 1st Class, followed in 1971 by the Order of Socialist Victory, and in 1974 by his recognition as a Hero of Socialist Labor. During November 1967, he led a MAN delegation to Iran, invited there by the Imperial Senate. In May 1968, he welcomed at the MAN the French President Charles de Gaulle, and gave the introductory speech. During March 1972, he was in Slovakia, at Zvolen, where he and other MAN delegates honored the memory of Romanian soldiers fallen in the battles of 1945. This was followed in October 1972 by another visit to the Soviet Union, where he met high-ranking members of the Supreme Soviet, including Vasily Konotop and Alexey Shitikov.