15.1 ENROLLMENT PROCEDURE It is important that the Trust Customer Service Office has a completed enrollment form for all Participants in its files. By working, Eligible Employees become covered based on the Eligibility Rules; however, it is necessary that Eligible Employees and Retired Participants who are not yet Medicare eligible complete an enrollment form before any Participant’s claim can be processed. If a Participant has not completed an enrollment form or if an additional enrollment form is needed, the Participant may obtain one from the Trust Customer Service Office. The enrollment form is the means by which Eligible Employees and Retired Participants designate Dependents, as well as the beneficiary of Life Insurance and Accidental Death & Dismemberment benefits. It is important that you notify the Trust Customer Service Office within 31 days if: You change your home address. You wish to change your beneficiary. There is any change in your family status, i.e., marriage, birth of a child, adoption, death, divorce, etc. Eligible Employees and Retired Participants must also submit a marriage certificate in order to enroll a spouse. Additional documentation, such as a birth certificate, will be required to enroll other Dependents. The Trust Customer Service Office can provide the appropriate form needed to enroll new eligible family members or to delete those no longer eligible. Retired Participants are ineligible for benefits unless they enroll timely. And their Dependents also remain ineligible for benefits, unless the Retired Participant enrolls the Dependents at the same time the Retired Participant enrolls. See the section titled “Eligibility Rules for Retired Participants” and “Eligibility Rules for Dependents” for details. IMPORTANT: Eligible Employees and Retired Participants are held liable for benefit payments based on any incorrect information about family members, such as failing to notify the Trust Customer Service Office in case of divorce, if a child is no longer a Dependent, or if an adoption is rescinded. In addition, the Eligible Employee or Retired Participant is liable for other costs incurred by the Plan as a result of the incorrect information. These costs include, but are not limited to, attorney’s fees, administrative costs, and reasonable interest. See the complete Subrogation and Reimbursement Procedure, below.