The interpretation of the direct standing rights according to Article 263(4) TFEU is very strict according to the Plaumann Test. The Lisbon Treaty aimed to increase the protection by opening for the possibility to apply for the annulment of a regulatory act. The Opinion of AG Kokott explains in detail that a regulatory act is a non-legislative act of general application; it refers to rule-making by the executive. Regulations are on the other hand legislative acts and individuals can not apply directly before the Union court for the annulment of a Regulation.
The alternative left for an individual as suggested by AG Kokott is to contact the national authorities trying to obtain a decision and if the decision were negative then it could be challenged before the national court. However, I am not sure that the administrative procedures of the member states allow this type of action. If the authority choose not to answer the questions sent by the applicant (in abstracto) the only practical solution is to commit an infringement and in this manner initiate the procedure. What is your opinion on this matter?
http://curia.europa.eu/juris/liste.jsf?language=en&num=C-583/11%20P