Wedding ceremonies can be as simple or elaborate as the marrying couple wishes. The vows, too, may be traditional or written by the couple for a more personal flair. Though much of the ceremony is flexible, the rules regarding the officiant are not. Only certain members of the community are able to perform marriage ceremonies in Colorado.

Colorado is the only state that allows the parties to be married (the bride and groom) to officiate their own ceremony. This procedure is done without any additional paperwork, as the two simply sign their names on the officiant's line. Not only does this save a bit of money, it also gives lends an intensely personal aspect to the wedding day. Couples then return the license to the county recorder, just as an officiant would do normally. Additionally, couples can choose to have an un-ordained master of ceremonies say their wedding but still sign the license themselves as the officiants.

In the state of Colorado, all judges may officiate marriage ceremonies. They are able to do so throughout the state, as their ability to do so is not tied to their county of residence or practice. Retired judges may also perform marriage ceremonies for as long after retirement as they wish.

Court magistrates are eligible to officiate weddings, as are retired members of this profession. Additionally, many public officials are also able to solemnize marriages, but those eligible to do so vary by state. Therefore, it is best to check with your county clerk for a list of those available to preside over marriages in your area.

Those with the power to perform marriages due to their standing in a religious or Native American community are also legally allowed to perform marriages in Colorado. This includes members of the clergy from any religious denomination and leaders of tribes. The marriage ceremony must be conducted according to the traditions of that church or community for it to be considered valid, though any modes recognized by the community are acceptable.