LEGISLATIVE GUIDE

How Colorado Legislation Works

The Colorado General Assembly is a bicameral legislature made up of 100 members — 35 in the Senate and 65 in the House of Representatives. The legislature meets for roughly 120 days each year, typically from January through May, to introduce, debate, and vote on bills that shape life across the state.

The Colorado General Assembly

Colorado’s state legislature is split into two chambers. The Senate has 35 members who serve four-year terms, with roughly half the seats up for election every two years. The House of Representatives has 65 members who serve two-year terms, meaning every seat is on the ballot each election cycle.

Both chambers meet at the Colorado State Capitol in Denver. The legislative session is constitutionally limited to 120 days, creating a compressed timeline that forces hard prioritization. Term limits apply to both chambers — legislators can serve a maximum of eight consecutive years in each chamber. Leadership in each chamber, including the Speaker of the House and the Senate President, sets the agenda and controls which bills receive floor time.

How a Bill Becomes Law

Every bill follows the same general path from idea to law. Here is how the process works in Colorado, step by step.

1. 1. Introduction

   Any member of the General Assembly can introduce a bill. House bills are prefixed with HB and Senate bills with SB, followed by the year and a sequential number (for example, HB26-1001). Each bill has at least one prime sponsor who champions it through the process.

2. 2. Committee Assignment

   Once introduced, the bill is assigned to a subject-specific committee — such as Health & Human Services, Finance, or Transportation. Committees hold public hearings where sponsors present the bill and members of the public can testify for or against it.

3. 3. Committee Vote

   After hearings, the committee votes on the bill. It can pass the bill (with or without amendments), postpone it indefinitely (effectively killing it), or refer it to another committee such as the Appropriations Committee if the bill has a fiscal impact. This is where most bills live or die.

4. 4. Second Reading (Floor Debate)

   Bills that pass committee move to the full chamber floor for second reading. This is the main debate stage, where any legislator can propose amendments and the full body discusses the bill’s merits. A majority vote advances the bill.

5. 5. Third Reading (Final Vote)

   The next legislative day, the bill comes up for third reading — its final passage vote in the originating chamber. No substantive amendments are allowed at this stage. A simple majority is required to pass.

6. 6. Second Chamber

   The bill then crosses to the other chamber and repeats the entire process — committee assignment, hearings, committee vote, second reading, and third reading. If the second chamber amends the bill, it goes back to the originating chamber for concurrence or to a conference committee to work out differences.

7. 7. Governor’s Desk

   Once both chambers pass identical versions of the bill, it goes to the Governor. The Governor can sign it into law, veto it, or allow it to become law without a signature. If vetoed, the General Assembly can override the veto with a two-thirds majority vote in both chambers — though overrides are rare in Colorado.

Key Players

Understanding who does what makes it easier to follow the action. Here are the key roles in the Colorado legislative process.

The 2026 Legislative Session

The 75th Colorado General Assembly convened its second regular session in January 2026 and is expected to adjourn by May 2026. During the session, legislators will introduce hundreds of bills covering everything from housing policy and tax reform to education funding and public safety.

Assembly Required tracks every bill from introduction through the Governor’s signature. Our bill tracker updates daily so you always know where things stand.

How Assembly Required Helps

The Colorado legislative process is powerful but opaque. Hundreds of bills move through committees and floor votes every session, and keeping up with all of them is a full-time job. That’s where Assembly Required comes in.

• •Plain-language summaries of every bill — no legal jargon, no political spin
• •Daily status updates during session so you always know where a bill stands
• •Business opportunity signals that flag legislation creating new markets, tax credits, or regulatory changes
• •A free weekly newsletter delivered every Wednesday with the most important developments

Frequently Asked Questions