You can get a REAL ID at any time, but you will have to go to a DMV office. You cannot obtain a REAL ID online, by phone, or by mail.
What documents should I bring to the office?
do not
and this real identification is mandatory in all cases?
A REAL ID is optional and is not required for the following:   Have a driver's license   Vote or register to vote
and what should i bring?
Proof of identity, such as a valid license, birth certificate, or passport, with your full name, middle name if applicable, and last name.
What if you have a valid New York license, permit or ID card?
you must bring your original social security card or W-2 with the complete SSN.
And what is Enhanced License Sample, REAL ID and Standard?