Maduro is because of be re-inaugurated on Friday.
González, at the moment exiled in Spain, says July’s presidential election was rigged and says he himself really gained it.
The opposition has referred to as for mass protests this week, whereas the Maduro authorities providing a $100,000 (£81,000) reward for data resulting in the arrest of González.
The voting tallies – an in depth official breakdown of the votes from every polling station – have been on the centre of the dispute over who gained the election.
The federal government-aligned Nationwide Electoral Council declared Maduro the winner however failed to supply the tallies to again up its declare.
The opposition, which with the assistance of accredited election witnesses collected and revealed greater than 80% of the voting tallies, says these show that González was the overwhelming winner.
The UN Human Rights Committee in December ordered Venezuela “to chorus from destroying” the voting tallies from July’s election.