General Directory for Catechesis

This co-operation is extremely fruitful in our time. Shared catechetical endeavour is advisable not only for reasons of geographic proximity but also for reasons of cultural homogeneity. Indeed "it is useful for a number of Dioceses to combine their actions, bringing together for common benefit their experiences and undertakings, their offices and equipment; for the Dioceses that are better provided to give help to the others; and for a common action programme to be prepared for the region as a whole". ^{296DCG (1971) 127.}