To advise the CCM on issues related to vacuum metrology;
To organize comparisons for testing equivalence of national primary standards for vacuum below 1 kPa and very low gas flow (leaks) on the highest accuracy level;
To organize comparisons for testing equivalence of national primary standards for vacuum pressures between 1 kPa and 100 kPa on the highest accuracy level when this is agreed with the WG on High Pressures;
To validate the final reports of the comparisons before proposing their publication in the BIPM database;
To exchange information between RMOs on issues related to vacuum metrology and equivalence of national standards for vacuum and very low gas flow mainly to provide sufficient linkage between RMO and CCM WG LP key comparisons;
To encourage and, if requested, coordinate research and development in the field of vacuum metrology to cope with the present and future needs of science, industry and society worldwide; and
To harmonize guidelines in the field of vacuum metrology related to the MRA.