by Dr. Gary Farr on 4 August 2004
1
Every state in the U.S. as well as Puerto Rico, the Virgin Islands, Australia and Mexico. This table gives the date when the various U.S. states enacted licensing in their respective state.
| State | Year | Notes |
| Alabama | 1959 | Went into effect in 1960 |
| Alaska | 1949 | - |
| Arizona | 1921 or 22 | - |
| Arkansas | 1915 (March 1) | Assn formed in 1917 |
| California | 1922 | By voters’ initiative |
| Colorado | MD-1907, DC-1933 | Separate board established-1954 |
| Connecticut | 1917 | - |
| Delaware | NA | - |
| District of Columbia | 1929 | - |
| Florida | 1979 | - |
| Georgia | 1921 | - |
| Hawaii | 1925 | - |
| Idaho | NA | - |
| Illinois | 1899 | Licensed under medical act with all other health professions |
| Indiana | 1955 | - |
| Iowa | 1921 | - |
| Kansas | 1913 | First chiropractor licensed May 12, 1915 - Dr. Anna Fay Assn formed 1911 |
| Kentucky | NA | - |
| Louisiana | 1974 | - |
| Maine | 1923 | - |
| Maryland | 1920 | - |
| Massachusetts | 1966 (June 28) | - |
| Michigan | 1933 | - |
| Minnesota | 1919 | - |
| Mississippi | 1973 | - |
| Missouri | 1927 | - |
| Montana | 1918 | By people’s initiative |
| Nebraska | 1915 | - |
| Nevada | 1923 | - |
| New Hampshire | NA | - |
| New Jersey | NA | - |
| New Mexico | NA | - |
| New York | 1962-Passed | 1963-Went into effect |
| North Carolina | 1917 | - |
| North Dakota | 1915 | - |
| Ohio | 1975 | - |
| Oklahoma | 1921 | - |
| Oregon | 1915 | - |
| Pennsylvania | 1951 | - |
| Rhode Island | 1923 | - |
| South Carolina | 1932 | - |
| South Dakota | NA | - |
| Tennessee | NA | - |
| Texas | 1949 | - |
| Utah | NA | - |
| Wyoming | NA | - |
| Virginia | 1920 | - |
| Washington | 1919 | - |
| West Virginia | Around 1925 | - |
| Wisconsin | NA | - |
| Vermont | 1947 | - |
© Copyright 2000-2005, BecomeHealthyNow.com, Inc. All rights reserved.