Colorado’s New Laws—Effective Summer & Fall 2025

When Did They Kick In? 

Most laws passed during Colorado’s regular 2025 legislative session took effect 90 days after adjournment, which fell on August 6, 2025—unless a different date was specified. Some, however, became effective earlier (e.g. upon signing) or later, depending on the bill. 

A Glance at Key New Laws 

1. New Consumer Protections & Energy Updates

• Price-gouging ban during emergencies: Under HB 25-1010, retailers can’t hike prices of necessities more than 10% above normal during a declared emergency.(Colorado Public Radio)

• “Clean energy” includes nuclear: With HB 1040, nuclear energy is officially classified as a clean energy resource.(Colorado Politics)

• Tax incentives for film festivals: HB 1005 provides tax breaks—$34 million over 10 years—for the film festival industry, including support for Sundance.(Colorado Politics)

2. Subscription and Auto-Renewal Ease

• Businesses must allow easy cancellation of auto-renewing subscriptions online, even if sign-up was in-person. Discounts can be offered, but only alongside a direct cancellation link. (SB 25-145)(Colorado Public Radio)

3. Corporate Oversight

• Pre-merger notifications required: Colorado now mandates that companies filing federal merger notices (HSR filings) also notify the state if they conduct significant business here. A step toward increased antitrust vigilance.(Axios)

Notable Laws Enacted Earlier in 2025 

• Express lanes and distracted driving: New rules on January 1, 2025, enforce fines ($75, doubling to $150) for improper entry/exits on tolled express lanes. Also, handheld phone use while driving is banned—fines up to $250; updated child car seat requirements: under 2 must be rear-facing, forward switches at 40 lbs, belts required up to age 18.(The Sun)

Why It Matters 

Changes in Colorado’s new laws reflect the state’s evolution across consumer rights, energy policy, education, civil liberties, environmental stewardship, and more. Whether it’s protecting consumers, strengthening civil rights, ensuring future water funding, or regulating corporate activity—many areas of daily life are shaping up to see real impacts.