HTML structure for Software licenses, Country laws?

Hey

I’m working on a project for my government.
It is a government laws and regulations document.
And the structuring is a pain.

I was wondering, If there is any good structure to follow? Lists, paragraphs?

Something engineered for these documents.
I mean some structure like the hcard is for contact information.
http://microformats.org/wiki/hcard

If there isn’t I think it may be a good idea to start working on making one.
Something that could fit Software licenses, Laws and Regulations etc.

Thank you

The Web Content Accessibility Guidelines is a good place to start.