International agreements are legally binding documents, which are characterized by highly structured and formalized language designed to ensure legal precision and enforceability. To translate them in line with legal and linguistic norms underlying legal translation, translators should be familiar with the characteristics of legal texts as well as be able to analyze grammatical structures and patterns in legal texts. This chapter aims to examine the translation of international agreements from English to Slovenian. It focuses on syntactic structures of simple and complex sentences at sentence and clause levels within the framework of systemic functional linguistics. The chapter thus aims to explore how these structures are maintained or adapted during translation. The focus is on identifying and assessing syntax-related translation shifts, including their frequency and the implications for the legal integrity of the target text. The chapter demonstrates the degree to which the syntactic characteristics of the source texts in English are preserved in Slovenian translations, given the strict requirements of legal language and the rules of the Slovenian language linguistic system. The key finding of the research presented in this chapter is that syntax-related translation shifts occur only when necessary to conform to the Slovenian language grammar system. The nature of the established shifts points to the translators’ adherence to the rule regarding the maintenance of the highest possible degrees of accuracy when translating normative texts while observing the grammatical characteristics of legal language.