The draft resolution, which has been circulated to Security Council members, is expected to be adopted at a special session of the top world body chaired by US President Barack Obama on September 24.
Under the measure, governments would take action against their nationals who travel or make plans to travel to a country "for the purpose of the perpetration, planning, or preparation of, or participation in terrorist acts."
The text obtained by AFP demands that "all states shall ensure that their domestic laws and regulations establish serious criminal offenses sufficient to provide the ability to prosecute and to penalize in a manner duly reflecting the seriousness of the offense."
About 12,000 foreign fighters have traveled to Syria and recently to Iraq from 74 countries, in the biggest such mobilization since the Afghan war of the 1980s, according to the London-based International Center for the Study of Radicalisation (ICSR), which tracks foreign fighters.
The US-drafted resolution goes further by putting the onus on governments to draft legislation allowing them to take action on their territory or use existing laws to address the threat of foreign fighters.
"The resolution will impose new binding obligations on countries to take action against foreign fighters, to prevent the facilitation of travel by foreign fighters and stop suspects," a US official said.
The resolution would fall under Chapter 7 of the UN charter, which means the measures could be enforced by economic sanctions or military force.
