Analyses of ocean tides are based on the separation of the tidal signal into constituents with different periodicities. We prepare a constituents list for the operational usage of a tidal prediction method called harmonic representation of inequalities. A frequency analysis is applied to data from 111 tide gauges. The new list consists of 39 entries. This is four constituents less than previously used. Comparisons with observations suggest that it leads to slightly improved tidal predictions.