Book,  Part, Title, Chapter, Can.

1 Intr                      |     been promulgated on the feast of Pentecost in the year
2    2,   2,    1,   2,  396|  Easter, Pentecost, and~the Feast of the Body and Blood of
3    3,   0,    1,   1,  768|     on the occasion of some~feast day or a sorrowful event.~§
4    4,   1,    4,   1,  960|     can occur on some great feast or pilgrimage.~§2. It belongs
5    4,   3,    2,   0, 1240|      transfer, and suppress feast days and days~of penance
6    4,   3,    2,   0, 1240|  bishops can decree special feast days or days of penance
7    4,   3,    2,   0, 1241|   obligation of~observing a feast day or a day of penance
8    4,   3,    2,   1      |                  CHAPTER I. Feast Days~
9    4,   3,    2,   1, 1244| Catholic rite either on the feast day itself~or in the evening