Nine countries of ALBA, a leftist bloc conceived by Venezuelan President Hugo Chavez, met in Bolivia where they vowed to press ahead with a new currency for intra-regional trade to replace the US dollar.
"The document is approved," said Bolivia's President Evo Morales, who is hosting the summit.
The new currency, dubbed the Sucre, would be rolled out beginning in 2010 in a non-paper form.
That move echoes the European Union's introduction of the euro precursor, the ECU, an account unit designed to tie down stable exchange rates between member states before the national currencies were scraped.
The bloc also called for the replacement of the World Bank's International Centre for Settlement of Investment Disputes, which arbitrates international contract disputes and has probed a slew of disputes involving ALBA members and western energy firms.