While these days there are no hard-and-fast rules about who handles each element of wedding planning and rituals, it's helpful to know the traditional breakdown of roles.
Bride and Groom
The bride and groom's big responsibility is to get married - but of course, there are myriad planning decisions to make first. Ideally the bride and groom work together on these decisions, to share the workload and to make sure both are happy with the plans. This entire web site is really about what the bride and groom need to do, but here's a nutshell version: Set budget; choose date, style and site for wedding; meet with ceremony officiant to discuss details; coordinate invites, flowers, photographer, etc.; shop for wedding bands (each pays for the other's); write wedding vows if they choose; send thank-you notes for all gifts.
In addition to their joint responsibilities, the bride and groom each traditionally handle certain details on their own. Each makes sure his or her family compiles a guest list. The bride chooses her bridesmaids and honor attendant and has final say on their attire. She delegates appropriate planning duties to her attendants and willing family members. She plans and hosts the bridesmaids' luncheon and gives her attendants thank-you gifts, and she buys a gift for groom.
The groom chooses his groomsmen and best man and picks their attire. He buys thank-you gifts for his attendants and for the bride.
Read full article at Bridalguide.com