Proceed to online marketplace: https://shop.jeppesen.com/shop/. In the upper right-hand corner click the login button:

Enter in login credentials, accept terms & conditions, and then hit LOG IN. You will be redirected back to the homepage. From there, click again on the Account icon highlighted in red above. Then click on MY ACCOUNT.

In the left column, click on Aircraft Details and then ADD NEW AIRCRAFT.

Please complete the form (all fields are required). Next accept Terms & Conditions. Once complete, hit SAVE. Your tail number has now been added to your account. You should see the aircraft added to your account similar to the image below.