Can a Catholic attend a wedding of a non-Catholic?

Can a Catholic attend a wedding of a non-Catholic?

Yes, as the Directory for the Application of Principles and Norms on Ecumenism states:

  1. Members of other Churches or ecclesial Communities may be witnesses at the celebration of marriage in a Catholic church. Catholics may also be witnesses at marriages which are celebrated in other Churches or ecclesial Communities.
DISCLAIMER: The views and opinions expressed in these forums do not necessarily reflect those of Catholic Answers. For official apologetics resources please visit www.catholic.com.