Indeed, San Marino’s Office will delegate its duties as receiving Office under the PCT to the European Patent Office (EPO). Please note that for PCT applicants that are residents or nationals of San Marino, the EPO already acts as a competent receiving Office (in addition to the IB).
In addition, on 1 January 2020, the Patent and Trademark Office of San Marino will close the national route for obtaining patent protection via the PCT. Importantly, for what regards international applications filed on or after that date it will no longer be possible to enter the national phase in San Marino. Applicants will therefore only be able to seek patent protection in San Marino by entering the regional phase before the EPO.
For more information, please see the following article.