Invisible barriers to trade
Government regulations that do not directly restrict trade, but indirectly impede free trade by imposing excessive or obscure requirements on goods sold within a country, especially imported goods. These regulations are often known to business owners within the country, because they may be required to comply with them, but are often not known by foreign businesses seeking to export their products, and therefore such regulations are “invisible”. Examples include labelling requirements, sanitary standards, and size or measurements standards. See also non-tariff barriers.