For a Puerto Rico address, is the urbanization necessary and how do I enter it

PUERTO RICO Addresses: Urbanization (urb.) is only required if the US Postal service normally uses it when delivering to your address. If that is the case, please include it on address line 1 or 2 using the abbreviation urb. to clarify to prevent any shipping delays. Thank you.

More Info:
Puerto Rico Address Example:

John Doe
Calle A-97
Urb. El Arrendado
Sabana Grande, Puerto Rico 00637