Recommendation ITU-T Z.167 defines a normative way of using ASN.1 as defined in [b-ITU-T X.680]@ [b-ITU-T X.681]@ [b-ITU-T X.682] and [b-ITU-T X.683] with TTCN-3. The harmonization of other languages with TTCN-3 is not covered by this Recommendation.