UPS returns a combination of zone and shipping code. To view these please visit the UPS website

The zones are based on both your origin and destination address. The origin address is set in System->Configuration->Shipping Settings. It is important this is set correctly else you will receive incorrect zones and it may confuse you.

When a zipcode is passed to the UPS API it will look up the zones and the available delivery types. These can be zero or more from the following list:

• Next Day Air Early AM
• Next Day Air Early AM Letter
• Next Day Air
• Next Day Air Letter
• Next Day Air Intra (Puerto Rico)
• Next Day Air Saver
• Next Day Air Saver Letter
• 2nd Day Air AM
• 2nd Day Air AM Letter
• 2nd Day Air
• 2nd Day Air Letter
• 3 Day Select
• Ground
• Ground Commercial
• Ground Residential
• Canada Standard
• Worldwide Express
• Worldwide Express Saver
• Worldwide Express Letter
• Worldwide Express Plus
• Worldwide Express Plus Letter
• Worldwide Expedited