Login to your account at Empower (uuaempower.com)
Select the Account tab at the top and select Contributions from the drop down menu:
On the next screen "My Contributions," click on Add / Edit:
Choose percent or dollar and click on the 0% or $0 to enter an amount. Then click Continue:
On the next screen, choose from:
Before Tax contribution
Roth Election contribution
Split your contribution (between before tax and Roth). If you choose to split your contribution, it will ask you to enter how much toward each election.
Then click Continue:
On the next page, review your election and click Confirm & Continue:
Your plan admin will get a notification on their To Do List that a change has been made, and they will take that information and forward it to your payroll provider to be implemented.
Please note: You can make changes to your salary deferral amount at any time you wish.
And note that you may have taxes, insurance premiums, etc. withheld from your paychecks, so if you are going to defer a set % of your pay, that amount is going to be that % AFTER the other deductions.