From: unitedafa.org 

Eligible employees and retirees have the opportunity to update their elections for enrolled friend, spouse, or domestic partner beginning December 1st through December 30th at 7:00 PM CST. If you are not making any changes to your enrolled friend, spouse, or domestic partner, no further action is required.

NOTE:  If you currently have buddy passes for 2015 and registered regular buddy pass riders, the names of the regular buddy pass riders will NOT carry over to 2016.  Keep in mind, this process does not require a specific enrolment period to register a regular buddy or extended family buddy; however in every instance it is recommended that you allow a minimum of 48 to 72 hours prior to the anticipated travel date for the processing of the registration of any buddy.

Additional information is available from the Travel section of the company’s website under Enrolled Friend. To update your elections, go to the company’s website then Employee Services > My Info > Pass Riders.