At the same time, the expansion of agricultural subsidies introduced more potential obstacles to agreement on a protocol of accession and the list of commitments. The process lost momentum also due to the implementation of the CU with Russia and Belarus, which brought about changes in Kazakhstan’s trade regime, in particular an increase in import tariffs. Progress has been made in making SPS and TBT legislation WTO-compatible, as in developing the regulatory base for the CU its members aimed at the harmonisation with WTO principles.