When you have an active assignment, log on to MyRCLHome and click on RCLCrewTravel, you will see a message on the left side of screen asking you to confirm your assignment, click on that message to access ACT.
You may also access the Assignment Confirmation Tool by following this instruction:
1. Log in to your MyRCLHome
2. Choose RCLCrewTravel
3. Click My Travel Details > Assignment Confirmation.