In the article, the problem of text-normative equivalence has been addressed. It was introduced by W. Koller in 1979, but so far it has not been further developed in the literature. Preserving textual and normative equivalence is particularly important in the translation of law texts. Therefore, the question arises about the parameters of equivalence. The article shows that in law acts such objective parameters are the specific attendance and distribution of lexical resources. They allow for a precise establishment of normative equivalents in the target language.