The European Commission will discuss France's response to its expulsion of Roma migrants next week.
The EU threatened legal action unless it was assured French laws on the free movement of people met EU rules.
The Commission said today it had received France's reply shortly before deadline last night. A spokesnman said it would analyse the response during the weekend so it could be discussed at its meeting on Tuesday.
The Commission demanded that France fully translate EU law on free movement of people into its national legislation after the country expelled 8,000 Roma gypsies.
If France's assurances are sufficient and then followed by changes in legislation, the country will avoid being taken to the European Court of Justice, which can impose fine for member states that break EU rules. Free movement of people is one the EU's main principles.
The case has strained relations between France and the European Commission, with President Nicolas Sarkozy vigorously defending the expulsions against widespread criticism from human rights groups and the Catholic Church.
France has said the Roma were sent back home, mainly to central and eastern Europe, because they had no means of support and lived in camps. It insists there was nothing racist in the move, although one official French document, known to the Commission, had instructed the police to target Roma camps.
France has sent around 8,000 Roma back to Romania and Bulgaria this year, bulldozing illegal camps where they were living on the outskirts of French cities as part of what Mr Sarkozy has called a crackdown on crime.
Last month, EU justice commissioner Viviane Reding compared the deportations to second World War expulsions, but later said she regretted the words.
Reuters