Each Oklahoma Legislature spans two years. Legislatures begin in odd-numbered years and always have at least two legislative sessions. These two sessions are called "regular sessions," and one regular session is held beginning on the first Monday in February and ending on the last Friday in May each year. Legislatures can also hold extra sessions, called "special sessions." Please find important dates and timelines of Oklahoma's 59th Legislature below!

Timeline of Oklahoma's 59th Legislature

1st Regular Session 59th Legislature

• Fri, December 9, 2022 – Deadline to request drafts of bills and joint resolutions for the 1st Regular Session of 59R
• Thurs, January 19, 2023 – Deadline to file House bills in House and Senate bills in Senate
• Mon, February 6 – Governor's State of the State Address and start of the 1st Regular Session of the 59th Legislature
• Thurs, March 2 – Deadline for House bills to be voted through House Committees and Senate bills to be voted through Senate Committees
• Thurs, March 23 – Deadline for House bills to be voted through House and Senate Bills to be voted through Senate
• Thurs, April 6 – Deadline for Senate bills and joint resolutions to be reported from House Subcommittees
• Thurs, April 13 – Deadline for House bills and joint resolutions to be reported from Senate Committees

•  Thurs, April 19 – Deadline for Senate bills and joint resolutions to be reported from House A&B Committee
• Thurs, April 27 – Deadline for House bills and joint resolutions to be voted through Senate and Senate bills and joint resolutions to be voted through House
• Fri, May 26 – Sine Die Adjournment, the end of 1st session of 59th legislature (5:00pm)

• Wed, June 21 – Deadline for Senators to request Senate interim studies
• Fri, June 30 – Deadline for Senate Pro Tempore to approve Senate interim studies and assign studies to Committee

• Fri, July 28 – Deadline for House Speaker to approve House interim studies and assign approved studies to Committee
• Fri, November 3 – Deadline for Senate interim studies to be concluded
• Thurs, November 16 – Deadline for House interim studies to be concluded

2nd Regular Session 59th Legislature

• Fri, December 8, 2023 – Deadline to request drafts of bills and joint resolutions for the 2nd Session of 59R
• Thurs, January 18, 2024 – Deadline to file House bills in House and Senate bills in Senate
• Mon, February 5 – Governor's State of the State Address and start of the 2nd Regular Session of the 59th Legislature
• Thurs, February 29 – Deadline for House bills to be voted through House Committees and Senate bills to be voted through Senate Committees
• UPDATE Thurs, March 14 – Deadline for House bills to be voted through House and Senate bills to be voted through Senate
• Tues, March 26 – OPHA Advocacy Day @ the Capitol!
• Mon, April 8 – Deadline for Senate bills and joint resolutions to be reported from House Committees
• Thurs, April 11 – Deadline for House bills and joint resolutions to be reported from most Senate Committees
• Fri, April 19 – Deadline for Senate bills to be reported out of full House Appropriations & Budget Committee
• Thurs, April 25 – Deadline for House bills and joint resolutions to be voted through Senate and Senate bills and joint resolutions to be voted through House
• Fri, May 31 – Sine Die Adjournment, the end of 2nd and final regular session of 59th legislature (5:00pm)