8老師，幾天前得您指點，馬上著手填I-824表。研究了好久依然問題一堆，請您再幫我看看吧！謝謝了！
Part 1. Information About You - 這部分是填我的個人信息還是原公司的信息呢？如果填公司信息，那Country of Birth, Citizenship, Date of Birth, US Social Security Number 就leave blank 是嗎？
-Yes or put "N/A" because your employer files this I-824. If possible, you may hire a lawyer to help you because your employer may feel confused.
Part 2, Reason for Request - 看來看去應該選D (USCIS to send my approved immigrant visa petition to the National Visa Center (NVC).
-Yes.
Instruction上說，If you are reuqesting category D or E in Part 2, the application must be completed and signed by the petitioner of the underlying immigrant visa petition. 所以說這個I-824表應該由我在美國的原雇主遞交沒錯吧？
-Correct. Ask your employer to give you the copy of the I-824 approval notice after it is approved. Also when you apply for the visa later, you need a support letter from your employer indicating the PERM position is still available after you get the green card.
Part 3, Additional Information - 3. Give the follwing information about the principal beneficiary of the original petition or application. 這是填我申請I-140時的地址嗎？
-No. It is your current address in Canada where the US Consulate in Canada will contact you for the visa application.
然後我有點糊塗，整張表3個部分，沒一個地方給我填我現在的居住地址（加拿大地址），將來他們怎麽聯係我，還有怎麽知道要把材料轉到哪兒的領事館去呢？
