USCIS has redesigned the permanent resident card, or “green card” to make it more secure, and began issuing the new card in green last month.

While originally issued as a green colored card, hence its nickname, the card has long since been issued in white.

The card (also known as I-551) serves as proof of lawful permanent resident status, which includes authorization to live and work in the United States on a permanent basis.

USCIS advises that the new design incorporates several new state-of-the art security features as part of its ongoing efforts to prevent immigration fraud.

A green card is valid for ten years (two years for conditional residents) and must be renewed when it expires.

Existing cards, however, remain valid until they expire.

While some older permanent resident cards (pink, usually) do not have an expiration date and remain valid, USCIS recommends that holders of such cards replace them.

But, they are not required to do so. The current cost of renewing or replacing a green card is $370, and application is made on Form I-90 available on the USCIS website.