Using a nationally representative survey of married couples N=572 in The Netherlands, I analyze three characteristics of the contemporary western marriage ceremony: a) whether couples give a wedding party, b) whether couples have their marriage consecrated in church, and c) whether couples go away on a honeymoon. Hypotheses are developed arguing that marriage ceremonies reinforce role transitions in two complementary ways: They reduce uncertainty about the new roles that people will occupy, and they provide approval for norm-guided behavior. Multivariate analyses support the hypotheses. Elaborate marriage ceremonies are more common among couples for whom the transition to marriage is more drastic, and traditional values in the social context of the couple go hand in hand with a more elaborate marriage ceremony.