I guess what the original poster wanted to know was that "is it valid to use two different tenses in the same context"?
CliveLast year I lived in China, but now I live in Canada.
This seems intuitive because you are stating two things happening at different times and the tense shifting is important for the topic.
Egyptian2007He also indicated that inspection committees make regular visits to the TEU in order to make sure that the instructions are fully implemented
This sentense is a bit tricky. For non-native English speaker like me, I would have questioned how could "he" pointed out about the visits when the the activities (seems to) only taking place now.