Gt12 national info

[jampat2004]

Hi all.Am New to gt12 have currently done 4 club meets and absolutely love it I am a 10th buggy racer but have got on the gt bug big time.
I was after some info from people who do the 12th nationals.
1.looking at the dates for the nationals it seems they are run on both days so do I have to book in for the Saturday and Sunday are they a 2 day meeting and do both days count together.
2.how do I book in is it directly through the brca website,only ever booked in for regionals through clubs before so don't have a clue about the system for nationals.
3.any info relevant that I may need to no before booking into a national,hopefully would like to do Stafford.
Many thanks for any help.
Jamie