Conversation so far:
What Was Bothas role in aprtheid?
He legalised interracial marriage and miscegenation, both completely banned since the late 1940s.
Was this a popular move on his part?
CANNOTANSWER.
Did he change any other laws during this time?
The constitutional prohibition on multiracial political parties was lifted.

Question: Were there any other segregation laws that he impacted?
Self-contained rewrite: Besides The constitutional prohibition on multiracial political parties being lifted,Were there any other segregation laws that  Botha impacted?