Series consists of papers from the early pre-Council days of the Theological Commission, and from Vatican II during which time the Synod of Bishops examined the Eastern Code in relation specifically to the Ukrainian Catholic Church in Canada, as well as considering many other issues. The papers were created in the course of this work, to which are linked the series dealing with Vatican II and with the Synod of Bishops.

The series is comprised of papers often in Latin and Italian, but sometimes in English, generated by the four sessions that comprised the Second Vatican Council from 1962-1965. This includes working drafts, reports, and schemata derived from committee positions held by Metropolitan Maxim.