What does postmarked actually mean? (According to USCIS)

[DJASP 3]

Hi, what does 'postmarked' actually mean, according to the USCIS?

Does it mean the day the parcel arrived at the USCIS Lockbox? 

 

I've read on the USCIS site about their 'Receipting and Acceptance Processing' (linked below), but to me it doesn't clarify about weekends and public holidays.

If a parcel arrives on a weekend or public holiday, will it be postmarked as received on the weekend/public holiday it arrived there? Or will it be postmarked as of their next business day?

 

To me, it seems it would be postmarked as the day it arrived at the Lockbox. USCIS website says they assure that the receipt date is recorded ("...as receipt date may be critically important to determine applicant eligibility.").

 

Just wondering if I've understood this properly. Could someone clarify this for me? Thank you in advance.

 

https://www.uscis.gov/ilink/docView/AFM/HTML/AFM/0-0-0-1/0-0-0-1067/0-0-0-1095.html

[Crazy Cat 39,227]

34 minutes ago, asdjp said:

what does 'postmarked' actually mean, according to the USCIS?

Postmarked means the day it was given to a carrier.......example:  the date and time it is mailed (date and time are marked by USPS)

https://en.wikipedia.org/wiki/Postmark

"A postmark is a postal marking made on a letter, package, postcard or the like indicating the date and time that the item was delivered into the care of the postal service."

Edited October 12, 2019 by missileman

[DJASP 3]

ahh thank you very much! 

[geowrian 22,335]

A postmark represents when the carrier received the item for delivery. It's basically the official "sent" date.

A receipt date for USCIS represents when the item was received (not necessarily when they actually opened it or processed it).

 

For some components, the postmarked date is important (like the currently-on-hold public charge rule change). For others (most items really), the date it is delivered is what matters.

[DJASP 3]

Perfect, thank you so much!