# Finance Act 1987, Paragraph 6 In the Schedule to the Petroleum Revenue Tax Act 1980 (computation of payment on account) in paragraph 2(4) for the words β€œor (f)” there shall be substituted β€œ (f) or (g) ”. --- Source: https://www.legislation.gov.uk/ukpga/1987/16/schedule/13/paragraph/6 (the official version) Page: https://openlegislation.uk/finance-act-1987/schedule-13/paragraph-6 Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.