IPVC provides students enrolled in a higher education program, as well as other interested parties, with the opportunity to register for individual curricular units (CUs) from its current offerings, as provided by article 46-A of Decree-law No. 74/2006 of March 24, amended by Decree-law No. 115/2013 of August 7, by Decree-law No. 63/2016 of September 13, and by Decree-law No. 65/2018 of August 16.

The curricular units in which the student obtains approval are credited, given the limitations provided by law, if they are currently or will become a student of a higher education cycle of studies.

In Isolated Curricular Units (isolated CUs), certification of the successfully completed units, according to the registration system, is limited to 50% of the total credits for the cycle of studies the student plans to initiate.

Isolated curricular units do not apply to the curricular units that a student must enroll in to complete a 1st or 2nd cycle program, regardless of the number of credits they lack for completion, whether they are a full-time or part-time student, based on the regime in which they were enrolled in the previous school year.