Session Related Publications Colorado General Assembly Special Sessions Subject: General Assembly State Government Published: September 11, 2025 Agency: Legislative Council Staff The Colorado General Assembly meets annually in regular session for up to 120 days. However, the Colorado Constitution allows the Colorado General Assembly to meet outside of the 120‑day regular legislative session to conduct legislative business in a special legislative session (special session). This memorandum provides information about special sessions, including their length and frequency, how they can be called, and information on each special session since statehood. Download Document