Yes, New Jersey players must verify their accounts before they can start playing real money games. Account verification can be done in two ways: Electronically or Manually.
To verify your account electronically, you must submit the Player Registration Form that requires you to provide personal details such as name, address and zip code as well as the last four digits of your Social Security Number (SSN).
The account can also be verified manually, but players must attempt electronic verification at least once before opting for the manual option. Manual verification can be done by submitting a copy of a government-issued photo ID and a copy of your Social Security card or a signed W9 form (which is “available from the IRS here”: https://www.irs.gov/pub/irs-pdf/fw9.pdf).