On 21 December 2015, Poland's president signed into law an amendment that delays the entry into force of the Law on Tax Administration to 1 July 2016. The law, which was enacted 31 July 2015, establishes: The National Tax Information Office, which is empowered to issue tax rulings; The Central Register of Tax Data; and Tax information centers where taxpayers can submit tax declarations, enquire on the application of tax law, apply for certificates, etc. It was originally to apply from 1 January 2016.