This paper is specifically related to the provisions of the European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR), Chapter 1.10, introduced in 2005 as a result of a recognized terrorist threat (the potential misuse of hazardous goods as a weapon), prescribing a Security Plan to be elaborated. The paper outlines the process of drawing up, implementing and running a Security Plan in an anonymous, but typical, SME company in Slovenia, involved in the storage and distribution of liquefied petroleum gas (LPG) and technical gases, considering the provisions set out and the available guidelines. Selected examples of the approaches and issues related to the implementation process are briefly demonstrated, e.g., the risk-assessment results with the anticipated development of the incident events, followed by general examples on personnel authorities and the responsibilities imposed, and similar. The process revealed some critical points and limitations in the expectations. For example, in a typical SME it is difficult to nominate independent representatives who are free of production-related work priorities (as their primary role) for the enforcement, evaluation and testing of the security measures introduced (which is usually their secondary role). (c) 2008 Elsevier Ltd. All rights reserved.