There are five precepts listed in the Catechism of the Catholic Church (cf. CCC 2041):

• The first precept requires that all members of the Church attend Mass on Sundays and Holy Days of Obligation and refrain from those activities that would impede the proper sanctification of these days.

• The second precept requires every member of the faithful, after having reached the age of discretion, to confess in kind and number all of their grave sins in the Sacrament of Penance and Reconciliation at least once a year. It is recommended that they also confess their venial sins.

• The third precept states that the faithful must receive the Eucharist at least annually during the Easter season. (Cf. CCC 2042)

• The fourth precept stipulates that the faithful must observe the prescribed days of fasting and abstinence during the liturgical year as a penitential practice. The prescribed days of fasting are Ash Wednesday and Good Friday. On these days Catholics from the age of eighteen through fifty-nine may have one full meal and two smaller meals, which together do not equal a full meal. Every Friday of the year is a day of abstinence, and Catholics from the age of fourteen should abstain from eating meat.  On Fridays outside of Lent, the bishops' conference may allow the faithful in its region of the world to substitute abstinence from meat with an act of charity or penance.

• The fifth and final precept obliges the faithful to contribute to the material needs of the Church as they are able. (Cf. CCC 2043)