Budget Book - Legal Requirements for Publication

Hello fellow CIPFA TIS users

I would be very grateful for your assistance if you would be so kind, does anyone know what legislation covers the requirement to publish an annual budget book and stipulates the content?

We are reviewing a number of accountancy processes and we would like to compare our current Budget Book content to what is actually legally required to see if we can save some time. I have found some information on the Information Commissioners Website that states the Budgets, individual cost centres and Capital Program must be included but the rest of the content is a bit vague.

I would be very grateful for any information or signposting to links to legislation/guidance that is a bit more detailed, my email address is Victoria.bamber@warwickdc.gov.uk and any information would be gratefully received.

Many thanks in advance