In 1999 the EU agreed to a ban on barren battery cages, giving a generous 12 year period to Member States to prepare for it. This ban is due to come into effect in 2012 but there are still doubts that it will actually happen, in particular because Poland maintains that as they did not join the EU until later, they have not had as much time as other countries to prepare - a very disingenuous position given that it was still public knowledge and they could easily have been making preparations while doing everything else they needed to become a Member State.
Compassion in World Farming has been running a campaign to try and make sure that the ban does come into full effect as planned. If anyone is living in Europe and feels stronlgy about this, you can send off a message from here to the Polish Prime Minister and Agriculture Minister. I'm never sure that petitions and online letter-writing campaigns such as this really work (I tend to be of the opinion that no politician really cares what I think) but it will take a few seconds of your time and may do something. Of course, it is also important to vote with your purse and not purchase cage-based products to avoid mixed messages. :)