1. What Apostolic Constitution introduces the CCC?

The Apostolic Constitution Fidei Depositum introduces the CCC.
An apostolic constitution is a decree or ruling issued by the Pope.

2. How many parts does the CCC have?

The CCC has four parts.

3. What is the content of each of the four parts of the CCC?

The content of each of the four parts of the CCC is:
1. The Creed = Dogmatic theology: what the Faith is
2. The Seven Sacraments = Liturgy: what the Faith gives
3. The Ten Commandments = Moral theology: what the Faith demands
4. The Our Father = Spiritual theology: what the Faith expresses.

4. How is each of the four parts of the CCC subdivided?

Each of the four parts of the CCC is subdivided into two sections.
Note that, in the CCC, “part” indicates the larger and “section” the smaller unit.