The Life Events site provides you with information to consider when major life changes like marriage, birth of a child, divorce, etc. occur.  Each section lists your options and describes how to make changes to your benefits.

Life Event

Marriage
Divorce, Legal Separation or Annulment
Birth of a Child
Adoption or Legal Guardianship of a Child
Spouse’s Loss of Job/Insurance or Change of Employment

Benefit Forms

Benefits Change Form
Dependent Information Request Form
Assurity Life Beneficiary Designation Form (Standard)
Assurity Life Beneficiary Designation Form (Trust)