| State | Regular Session Convene | Regular Session Adjourn | Comments | Special Session Convene | Special Session Adjourn | Comments |
| Alabama | Feb 5 | May 19 | | May 27 | May 31 | Education funding |
| Alaska | Jan 15 | Apr 13 | | June 3 | July 2 | Natural gas pipeline |
| | | | | July 9 | Aug 7 | Natural gas pipeline, temporary suspension of fuel tax, energy, resource rebate program |
| Arizona | Jan 14 | Jun 27 | | | | |
| Arkansas | | No regular session in 2008 | | Mar 31 | Apr 2 | Gas tax, gubernatorial appointments
|
| California A S | Jan 7 | Sep 15 | Extended from Aug 31 | Sept 11, 2007 | Sept 19 | Health care |
| | | | | Sept 11, 2007 | Nov 30 | Water |
| | | | | Jan 14 | Sept 16 | Budget |
| | | | | Nov 6 | Nov 30 | Budget |
| | | | | Dec 2 | Dec 18 | Fiscal Emergency |
| | | | | Dec 2 | | Economic stimulus, housing mortgage crisis, unemployment insurance fund solvency |
| Colorado | Jan 9 | May 6 | | | | |
| Connecticut | Feb 6 | May 7 | | Jan 22 | Feb 1 | Criminal Justice |
| | | | | June 11 | Dec 9 | Conveyance tax on real estate |
| | | | | June 11 | June 11 | Adjourned to the call of the chair. Session convered petroleum tax increase, ethics, state agency funding |
| | | | | Aug 22 | Aug 22 | Energy |
| | | | | Nov 24 | Dec 9 | Budget |
| | | | | Nov 24 (2nd) | Dec 9 | |
| Delaware | Jan 8 | Jun 30 | In recess Jan 29 - Mar 6 | | | |
| Florida H S | Mar 4 | May 2 | | | | |
| Georgia | Jan 14 | Apr 4 | | | | |
| Hawaii | Jan 16 | May 1 | | | | |
| Idaho | Jan 7 | Apr 2 | | | | |
| Illinois H S | Jan 9 | * | | Jan 2 | Jan 13, 2009 | 19th special session of this biennium; mass transit; gaming |
| | | | | July 9 | Jan 13, 2009 | 20th and 21st special sessions of this biennium; budget |
| | | | | July 10 | Jan 13, 2009 | 22nd special session of this biennium; budget |
| | | | | Aug 12 | Jan 13, 2009 | 23rd special session of this biennium; education funding |
| | | | | Aug 13 | Jan 13, 2009 | 24th special session of this biennium; capital infrastructure plan |
| | | | | Sept 22 | Jan 13, 2009 | 25th and 26th special sessions of this biennium; ethics, insurance coverage for autism |
| Indiana | Jan 8 | Mar 14 | Organizational day on Nov 20, 2007 | | | |
| Iowa | Jan 14 | Apr 22 | | | | |
| Kansas | Jan 14 | May 29 | Extended from Apr 12, will meet Apr 30 | | | |
| Kentucky | Jan 8 | Apr 15 | | June 23 | June 27 | Pensions |
| Louisiana | Mar 31 | Jun 23 | | Feb 10 | Feb 26 | Ethics |
| | | | | Mar 9 | Mar 14 | Taxes and Economic Investments |
| Maine | Jan 2 | Mar 31 | | Apr 1 | Apr 18 | Issues outside session scope and nominations |
| Maryland | Jan 9 | Apr 7 | | | | |
| Massachusetts | Jan 2 | * | | | | |
| Michigan H S | Jan 9 | * | | | | |
| Minnesota H S | Feb 12 | May 18 | | | | |
| Mississippi | Jan 8 | Apr 19 | | May 21 | Aug 4 | Medicaid funding |
| Missouri H S | Jan 9 | May 30 | | | | |
| Montana | | | No regular session in 2008 | | | |
| Nebraska | Jan 9 | Apr 17 | | Nov 14 | Nov 21 | Safe haven law |
| Nevada | | | No regular session in 2008 | June 27 | June 27 | Budget |
| | | | | Dec 8 | Dec 8 | Budget |
| New Hampshire | Jan 2 | Jun 4 | Recessed to the call of the chair until Dec 1 | June 4 | June 4 | Budget |
| New Jersey | Jan 8 | * | | | | |
| New Mexico | Jan 15 | Feb 13 | | Aug 15 | Aug 19 | Health care, funding for transportation, emergency appropriations |
| New York | Jan 9 | * | | Aug19 | Aug 20 | Budget |
| | | | | Nov 18 | Nov 18 | Budget |
| North Carolina | May 13 | Jul 17 | | Mar 20 | Mar 20 | Consideration of recommendations made by the Select Committee to Investigate Misconduct and Other Matters |
| North Dakota | | | No regular session in 2008 | | | |
| Ohio | Jan 2 | * | | | | |
| Oklahoma | Feb 4 | May 30 | | | | |
| Oregon | | | No regular session in 2008 | Feb 4 | Feb 29 | Budget |
| Pennsylvania | Jan 1 | * | | Sept 17, 2007 | Nov 30 | Energy |
| Rhode Island | Jan 1 | Jun 21 | | | | |
| South Carolina | Jan 8 | Jun 5 | | | | |
| South Dakota | Jan 8 | Mar 17 | | | | |
| Tennessee | Jan 8 | May 21 | | | | |
| Texas | | | No regular session in 2008 | | | |
| Utah | Jan 21 | Mar 5 | | Sept 25 | Sept 26 | Budget |
| | | | | Nov 19 | Nov 19 | Senate only - Gubernatorial Appointments |
| Vermont | Jan 8 | May 3 | | | | |
| Virginia | Jan 9 | Mar 13 | Extended from Mar 8 | Mar 13 | Apr 23 | Bonds, capital improvement |
| | | | | June 23 | July 9 | Transportation |
| Washington | Jan 14 | Mar 13 | | | | |
| West Virginia | Jan 9 | Mar 16 | | Mar 16 | Mar 16 | Unfinished regular session business |
| | | | | June 25 | June 28 | Supplemental appropriations, election reform, scrap metal, regulation and control of campaigns |
| Wisconsin | Jan 15 | * | Recessed for the biennium May 28 | Dec 11, 2007 | May 13 | Campaign finance reform |
| | | | | Mar 12 | May 15 | Budget |
| | | | | Apr 17 | May 15 | Great Lakes water compact |
| Wyoming | Feb 11 | Mar 7 | | | | |
| American Samoa | Jan 14 | | Second part of session begins July 14 | | | |
| District of Columbia | Jan 7 | * | | | | |
| Guam | Jan 14 | * | | | | |
| N. Mariana Islands | | | | | | |
| Puerto Rico | Jan 14 | Jun 30 | | | | |
| Virgin Islands | Jan 14 | * | | | | |