The literal meaning is - the signature is not required.
HOWEVER - not enough is known of the situation to make a complete answer.
WHAT is an "employment authorization card," WHO or WHAT is issuing it, and WHOSE signature is being "waived?"
Yes, you can use your employment authorization card as a form of identification to fly within the United States.
Visas are standard requirements for anyone entering a foreign country. It is therefore true that you will need a visa even if you have an authorization card.
It's on the back of the card, usually a three digit number located in the signature area.
Even though your petition has been approved you cannot applied for I-765 Employment Authorization because you don't have a visa number, which is the Alien Number, that will also be on your employment authorization card...
Yes, you can fly domestically within the United States with an Employment Authorization Document (EAD) card as a form of identification.
As long as you have a work authorization and social security card from Homeland Security. You must have a EAD "Employment Authorization Document" Card in hand and that will get you a SSI card with "Work Authorization Only" stamped on it. All of this comes when you have a Visa to immigrate to the US... Or find a employer who will sponsor you for a working Hl B Visa.
Somebody had to SIGN that authorization check at the bank for the signature
Yes, as a form of identification only. It will NOT get you back into the US if you do not have Advance Parole if you don't have your Green Card.
Yes, you can use your Employment Authorization Document (EAD) card to fly domestically within the United States as a form of identification.
The proof of legal right to work required for employment is typically a document such as a Social Security card, birth certificate, or work authorization permit that shows an individual is legally allowed to work in the country.
A credit card authorization typically expires within 7-30 days, depending on the merchant and the card issuer's policies.
A bank signature card can be titled simply as "Signature Card" or "Bank Signature Card." It's important to include the bank's name for clarity, such as "ABC Bank Signature Card." This ensures that the document is easily identifiable and associated with the correct financial institution.