General Public Administration Activities ISIC Code 8411. This class includes executive and legislative administration of central, regional, and local bodies, administration, and supervision of fiscal affairs; operation of taxation schemes, duty/tax collection on goods, and tax violation investigation, customs administration, budget implementation and management of public funds and public debt; raising and receiving money and control of their disbursement, administration of overall (civil) R&D policy and associated funds, administration and operation of overall economic and social planning and statistical services at the various levels of government.