What is the Difference of Address line 1 and Address line 2?

Address Line 1 typically includes the primary address information, such as the street number and name, for example, "123 Main St." Address Line 2 is used for additional address details that may be necessary, such as apartment numbers, suite numbers, or building names, like "Apt 4B" or "Building C." This format helps ensure that the full address is complete and accurate for delivery or location purposes.