The article discusses the provisions of the Civil Procedure Code regarding the address of a sole proprietorship (entrepreneur) to which court and procedural documents should be delivered. In recent years, these provisions have been significantly amended. Particularly important has been the issue of recognizing the binding nature of the entrepreneur's address disclosed in the Central Registration and Information on Business (CEIDG) when delivering initial documents regarding a case. Apart from discussing changes in the regulations related to using the CEIDG-address in civil proceedings, the article attempts to assess the current regulations and the underlying reasons behind them. It also includes proposals for solutions that would improve the delivery of documents to entrepreneurs.

The article discusses changes in the provisions regarding the delivery of letters addressed to entrepreneurs under civil proceedings. The Code of Civil Procedure has been amended in this respect by the Act of 4.07.2019 amending the Act — Code of Civil Procedure and some other acts (Journal of Laws of 2019, item 1469). The article focuses in particular on the issue of the admissibility of using the fiction of delivery (serve by default) of the first letter in a case addressed to the entrepreneur. In addition to discussing the new regulation on delivery, the aim of the article is to present proposals for changes in the said document in the area primarily concerning entrepreneurs.