In this paper, we tried to point out some linguistic and stylistic specificities of the syntactic structures of repetition in the reports of the European Commission for Bosnia and Herzegovina, because reports as an administrative genre are characterized by a structural stability that often conditions not only lexical but also syntactic repetitions. Since the administrative functional style as a whole is characterized by the nominal way of expression, the most represented type of syntactic sequence in the corpus was substantive, i.e. non-predicate sequences, in which noun phrases and/or dejective and deverbative noun lexemes accumulate most often. The dominance of deverbative and dejective nouns as constituents of a coordinated sequence is in agreement with the nominality and abstractness of the administrative language. When it comes to the type of coordinated construction that syntactically expands the sentence structure, three-member copulative strings with the conjunction i (and) have a high degree schematization, so we can conclude that they also represent an established form of syntactic accumulation in the observed reports. Substantive syntactic sequences in these texts serve as a means of creating schematized discourse. In addition, syntactic accumulation, despite its complexity, has various communicative and stylistic functions. The analysis proved that the accumulation of substantive units, primarily nouns and noun phrases from a large number of elements, avoids redundancy and increases informativeness and the degree of specification and explanation of the content.