Consonance of RDA in serials bibliographic records catalogues

The aim of this study is to determine that how much the serials bibliographic records Catalogues of National Library and Archive of IR of Iran are compatible with the RDA.
This study is an applied study which has been conducted using survey method and the descriptive-analytic approach (comparative). The research community consists of 14,600 serial records existing in Iran’s National Bibliography and the research sample consists of 375 records. Data collection tools are a checklist and the mapping table.
Findings: the results showed that 14.7 percent of the existing data in the records under study are totally congruous with the RDA elements and 83.5 percent are not congruous with these elements. And also 1.8 percent of these data are relatively congruous with RDA elements. Block 1 with an average of 167 has the most congruous and block 4 with an average of 5 has the lowest compliance.
Serials records have a small compliance with RDA rules. Block 1 has the highest and block 4 has the lowest compliance with the RDA elements. The main reason for being non-compliance is the emptiness of fields.