CENVAT Credit adjustment: fixed rates apply to exempted supplies with liability capped by available opening balance and credits. Amendment replaces rule 6(3)(i) to require payment calculated on exempted goods and exempted services, subject to a maximum equal to the opening balance of input and input service credit available at the period's start plus credits taken during that period; and substitutes in rule 7B(1) the reference to invoices under the Central Excise Rules, 2002 with 'documents specified under rule 9'.