Updated March 17, 2025 Mason's Manual 2020 Edition Mason's Manual of Legislative Procedure is a premier parliamentary authority for state legislatures. NCSL follows Paul Mason's tradition of updating and reprinting the book approximately every 10 years. About State Legislatures Center for Legislative Strengthening
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Updated April 24, 2025 2025 State Legislative Session Calendar 2025 State Legislative Session Calendar - view the legislative session calendar and map of the 50 U.S. states and territories. Find dates and notes about upcoming and current regular sessions and special sessions. About State Legislatures Map