[en] In the Slovenian legislation a mandate is given to The Agency for Radioactive Waste Management (Arab) to perform various tasks related to safe management of radioactive waste in Slovenia. Part of the activities is siting and construction of a repository for low and intermediate level radioactive waste (LILW). The process of siting and construction is three-phase, with accompanying safety documentation produced in each step, Special Safety Analysis (SSA), Environmental Impact Assessment (EIA) and Safety Analysis Report (SAR), respectively. Slovenian Nuclear Safety Administration (SNSA) is a regulatory body, whereas ARAO is the licensee. The interaction between the two should follow the scheme: requirements, guidelines, application with documents, review and licensing. The repository project is the first of a kind according to new Slovenian nuclear regulations set in 2002. Compliant with its scope of responsibilities SNSA shall determine requirements regarding the extent and contents of the safety documentation. The paper will present the process of preparation of the guidelines and requirements by SNSA. The latest findings in regulatory role at regard of interaction with licensee were used, taking into consideration recommendations from International Atomic Energy Agency, European Union, Nuclear Energy Agency, and similar examples in other countries. SNSA has already prepared extensive guidelines on how to perform SSA, while guidelines for EIA and SAR are in the drafting phase. Requirements and guidelines are important documents both for licensee, when producing the safety documentation, and for regulator, when reviewing the application, and to great extent contribute to prevention of any unnecessary delays in the licensing process. A national repository for low and intermediate level radioactive waste is due to start operation in 2013 with the location known in 2008. (author)