Здравствуйте. Не могли бы вы, дорогие форумчане, прояснить красную строчку?

On July 27, 2010, we mailed you a notice that we had registered this customer’s new permanent resident status. Please follow any instructions on the notice. Your new permanent resident card should be mailed within 60 days following this registration or after you complete any ADIT processing referred to in the welcome notice, whichever is later.

Ужа сам понял, спасибо.