One of the advantages for employees in a group health plan is the contribution most employers make toward the cost of the health coverage premium â in many cases, employers pay one-half or more of the monthly premium for an employee.
The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in 1983, includes the five digits of the ZIP code, a hyphen, and four additional digits that determine a more specific location within a given ZIP code. The USPS provides a free online lookup tool for ZIP codes.
This refers to the first three digits of a 5-Digit ZIP Code. The first digit (0-9) designates the general area of the country with numbers starting lower in the east and increasing as you move west. For example 0 covers Maine while 9 refers to California.