However, it said stringent financial penalties would be imposed if these failed to comply with the laws by January 2013.
Refusal to share carbon emission data is a violation of the EU's emissions trading system laws.
In January, the 27-member EU bloc had decided to include the aviation sector under the EU ETS.
Since then, it has asked all domestic, as well as foreign airlines, to comply with the changed laws and share their carbon emission data with Brussels.
The airlines would now need to follow a specific benchmark on carbon emissions or pay a carbon tax, along with a penalty.
However, India and China have refused to share the data.
The two nations also indicated severe implications if the EU banned their airlines from entering its airspace.
"In the case of 2011 data, the penalties were not the same throughout the EU, but were determined by each member state. These apply to airline operators administered by the respective member state.
Overall, however, it can be said the penalties for this violation of EU law take the form of financial penalties. No airline will be banned from flying to the European Union because it did not submit their 2011 data," Valero Ladron, EU spokesperson for climate action, told Business Standard.
He added airlines that would continue to emit more than the prescribed cap on emission would be asked to either reduce emissions or pay for the emission.
Airlines can either make the payments on their own, or pass on the costs to passengers. This would mean a one-way ticket from Brussels to Delhi would cost an additional ^1.55.
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