Envelopes
Now that computerized bar-coding and address-scanning equipment is used, the U.S. Postal Service advises against putting phone numbers, Web addresses (particularly Web addresses with numbers in them), or teasers that have numbers in them on envelopes or mailers. Contact the Department of Communications Services for assistance with envelope or mailer copy to ensure proper and timely delivery.
Abbreviations
(Note: Use two spaces between state and zip code on business reply cards and on all envelopes.)
| In addresses | In text following the name of a city | |
| Alabama | AL | Ala. |
| Alaska | AK | Alaska |
| American Samoa | AS | American Samoa |
| Arizona | AZ | Ariz. |
| Arkansas | AR | Ark. |
| California | CA | Calif. |
| Colorado | CO | Colo. |
| Connecticut | CT | Conn. |
| Delaware | DE | Del. |
| District of Columbia | DC | D.C. |
| Florida | FL | Fla. |
| Georgia | GA | Ga. |
| Guam | GU | Guam |
| Hawaii | HI | Hawaii |
| Idaho | ID | Idaho |
| Illinois | IL | Ill. |
| Indiana | IN | Ind. |
| Iowa | IA | Iowa |
| Kansas | KS | Kan. |
| Kentucky | KY | Ky. |
| Louisiana | LA | La. |
| Maine | ME | Maine |
| Marshall Islands | MH | Marshall Islands |
| Maryland | MD | Md. |
| Massachusetts | MA | Mass. |
| Michigan | MI | Mich. |
| Minnesota | MN | Minn. |
| Mississippi | MS | Miss. |
| Missouri | MO | Mo. |
| Montana | MT | Mont. |
| Nebraska | NE | Neb. |
| Nevada | NV | Nev. |
| New Hampshire | NH | N.H. |
| New Jersey | NJ | N.J. |
| New Mexico | NM | N.M. |
| New York | NY | N.Y. |
| North Carolina | NC | N.C. |
| North Dakota | ND | N.D. |
| Ohio | OH | Ohio |
| Oklahoma | OK | Okla. |
| Oregon | OR | Ore. |
| Palau | PW | Palau |
| Pennsylvania | PA | Pa. |
| Puerto Rico | PR | Puerto Rico |
| Rhode Island | RI | R.I. |
| South Carolina | SC | S.C. |
| South Dakota | SD | S.D. |
| Tennessee | TN | Tenn. |
| Texas | TX | Texas |
| Utah | UT | Utah |
| Vermont | VT | Vt. |
| Virgin Islands | VI | Virgin Islands |
| Virginia | VA | Va. |
| Washington | WA | Wash. |
| West Virginia | WV | W.Va. |
| Wisconsin | WI | Wis. |
| Wyoming | WY | Wyo. |