This September 2009 WTO report states in its press release,
"G20 Governments have refrained from extensive use of restrictive trade and investment measures in recent months but have continued, in a limited way, to apply tariffs and non-tariff instruments that have hindered trade flows, the heads of the OECD, UNCTAD and the WTO indicated in a joint report to G-20 leaders meeting in Pittsburgh later this month."