In 1959, as part of the Zone Improvement Plan (ZIP Code).
Prior to the introduction of two-letter state abbreviations in 1963, "Miss." was the official abbreviation for "Mississippi".
Calif. was the popular abbreviation for California from the time it became a territory until 1963, when the US Postal Service introduced standardized two-letter state abbreviations. Starting in 1963, CA is the official abbreviation of California. Two-letter state abbreviations were introduced to make room from Zip Codes, which were also introduced in that year.
MA is the postal abbreviation for Massachusetts.Note: All State abbreviations are two letters and both are capitalized.
TN is the state abbreviation for Tennessee.
AR
1963
Prior to the introduction of two-letter state abbreviations in 1963, "Miss." was the official abbreviation for "Mississippi".
State portal abbreviations should be alphabetized based on the first letter in the abbreviation. For example, AL(Alabama) would come before TX (Texas).When the first letter in two abbreviations match, then the second letter should be used to determine alphabetical order. For example, AL (Alabama) would come before AZ (Arizona).
Calif. was the popular abbreviation for California from the time it became a territory until 1963, when the US Postal Service introduced standardized two-letter state abbreviations. Starting in 1963, CA is the official abbreviation of California. Two-letter state abbreviations were introduced to make room from Zip Codes, which were also introduced in that year.
See the links below for state postal abbreviations. In short, it's a two-letter code for a state, like OH for Ohio, or HI for Hawaii.
A period is used in a state abbreviation in a sentence. For example, "She lives in Portland, OR."
It is most common to use capital letters for state abbreviations and no periods. The reason is because the two-letter capital letters are U.S. Postal Service approved. Also, it is poor form to abbreviate states like Mass. for Massachusetts. It is recommended you use MA with no periods.
"it" and "ita" are abbreviations for the word "Italian." The two abbreviations respectively illustrate the two-letter and three-letter International Organization for Standardization ISO 639 language codes. They also may be found elsewhere for abbreviations regarding Italy and the Italian language and people.
They are the two-letter abbreviations for California, Arizona and Texas respectively.
There are two US state capitals that begin with R. They are Raleigh, NC and Richmond, VA.
In 1963, the Post Office Department implemented the five-digit ZIP Code, which was placed after the state in the last line of an address. To provide room for the ZIP Code, the Department issued two-letter abbreviations for all states and territories. Publication 59, Abbreviations for Use with ZIP Code, issued by the Department in October 1963, told why. Two letter abbreviations were provided by the Post Office Department as an aid to mailers in accommodating ZIP Codes with the usual City-State line of addresses. The abbreviations are based on a maximum 23-position line, because this has been found to be the most universally acceptable line capacity basis for major addressing systems. A breakdown of the City-State-ZIP Code line positions is as follows: 13 positions for city, 1 space between city and State designations, 2 positions for State designation, 2 spaces between State designation and ZIP Code, and 5 positions for ZIP Code. Only one change has been made to the abbreviations issued in 1963. the two-letter abbreviation for Nebraska, originally NB, was changed to NE to avoid confusion with New Brunswick in Canada.
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