Ratification of CERD: yes in 1992, Serbia has also agreed to individual petitions under Article 14.

Extracts from ECRI's third report (adopted in December 2007):
In 2006 Serbia adopted a new Constitution which establishes the principles of non-discrimination and protection of minority rights and provides for the state to promote understanding, recognition of and respect for ethnic, cultural, linguistic and religious diversity. In 2006 Serbia also enacted a new Criminal Code, which prohibits racist offences and racial discrimination. A bill on discrimination is drafted, but Serbia has not yet enacted exhaustive provisions against racial discrimination under civil and administrative law. The situation of Roma, Ashkalis and Egyptians displaced inside the country remains precarious.

Link to the full document:
http://www.coe.int/t/e/human_rights/ecri/1-ecri/2-country-by-country_approach/serbia/serbia_cbc_3.asp#P80_3793

ECRI land reports in French and when present in the original language of the country:
French