公民給父母申請綠卡

我是2007年初給父母申請的綠卡，所有的材料一起寄出去的，綠卡是三個月以後收到。
和材料一起我還寄了一個清單。下麵是我父親的那份：
(I-131 要不要寄看個人情況)

Application package of Father's Name

- Form I-130, check attached, My Name petitioning for father Father's Name
- Naturalization certificate of My Name
- Passport copy of My Name
- Birth certificate of My Name
- Marriage certificate of My Name's parents
- FC-029, copy certification

- Form I-485, check attached, 2 photos attached
- Form I-131, check attached, 2 photos attached
- G-325A Biographic Data Sheet
- Form I-693, sealed Medical Examination Sheet
- Form I-864 Affidavit of Support
- Form I-864 support docs: Tax return, Employment letter of My Name
- Form I-94, Arrival Departure Record
- Copy of my father's birth certificate
- Copy of my father's passport, including the page with nonimmigrant visa