In a judgment of November 17, 2011, Case III CSK 30/11, the Polish Supreme Court held that claims brought by collecting societies regarding copyright are as a rule subject to a 10-year limitation period, even if the claims—by virtue of law—can be brought to the court only by the respective collecting society (mandatory representation). The specific length of the limitation period (3 or 10 years) depends, however, on the respective nature of the claim. The judgment also provided insight into the Supreme Court’s views on the extent to which submission of and access to documents can be demanded to determine remuneration and fees claimed by a collecting society (CS) based on art.105 (2) of the Polish Copyright Act.