List of U.S. states by traditional abbreviation
This is a list of traditional abbreviations for U.S. states and territories These abbreviations (short names) were used in mailing addresses before the introduction of two-letter U.S. postal abbreviations. The traditional abbreviations are still commonly used in other ways besides mailing addresses. For example, they can be used in writing after a city (like in "Miami, Fla."). In 1987 the Secretary of Commerce switched to the two-letter State Alpha Code for state abbreviations.