I have a page with the usual suspects on - header, main nav etc.
In the main page I have an article such as terms & conditions, then in the left column an associated menu that can be used to switch between different policies - privacy, cookie policy etc.
From what I've read this is not a use for the nav attrcibute (I could be wrong), but is it then an aside as it does relate to the main content of the page?
Any advice appreciated.