Colorado Appliance and Equipment Energy Efficiency Standards

August 24, 2023


NOTE: The federal government has imposed and updated appliance efficiency standards through several legislative acts,* and now has standards in place or under development for 30 classes of products. In general, states which had set standards prior to federal action may enforce their own standards until the federal standards take effect. States that had not set standards prior to federal action must use the federal standards. This summary addresses (1) state appliance standards that will be in place until the federal standards take effect and (2) products for which the federal government is not currently developing an efficiency standard. Much of the information in this summary comes from the Appliance Standards Awareness Project (ASAP). Visit the ASAP web site and the U.S. Department of Energy's Appliance and Equipment Standards site for comprehensive information about appliance standards.

Legislation in 2019 (HB19-1231) updated and adopted standards for water efficiency and energy efficiency that apply to a list of 15 consumer and commercial appliances and other products. The standards are based on state standards, federal Energy Star and WaterSense specifications, and industry standards in most cases or, where a standard is not incorporated by reference, the standard is specified by statute.  Additionally, the state is phasing out the sale of fluorescent lighting. Screw-base CFL bulbs will be phased out on January 1, 2025, and pin-base CFL and fluorescent tubes will be phased out on January 1, 2026. 

Products with updated or new energy efficiency standards specified in HB19-1231 that are not preempted by federal laws are listed below with their adoption year:

  • Commercial Dishwashers (2019)
  • Commercial Fryers (2021)
  • Commercial Steam Cookers (2021)
  • Compressors (2019) 
  • Computers and Computer Systems (2019) 
  • Faucets (2019)
  • General Service Lamps (2019) 
  • High-CRI Linear Fluorescent Lamps (2019)
  • Hot Food Holding Cabinets (2019) 
  • Portable Air Conditioners (2019)  
  • Portable Electric Spas (2019)
  • Residential Ventilating Fans (2019) 
  • Showerheads (2014) 
  • Spray Sprinkler Bodies (2019)  
  • Toilets (2014)
  •  Uninterruptible Power Supplies (2019) 
  • Urinals (2014)
  • Water Coolers (2019)

These provisions do not apply to: products held in inventory on or before the effective date of the applicable standard for each category of product; products installed in mobile manufactured homes at the time of construction; or products designed expressly for installation and use in recreational vehicles.

* These acts include the National Appliance Energy Conservation Act of 1987, the Energy Policy Act of 1992, the Energy Policy Act of 2005, and the Energy Independence and Security Act of 2007.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Colorado
Incentive Type: Appliance/Equipment Efficiency Standards
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
  • Lighting
  • Air conditioners
  • Commercial Cooking Equipment
  • Personal Computing Equipment
  • Data Center Equipment
  • Commercial Refrigeration Equipment
Review: The Department of Energy (DOE) establishes energy-efficiency standards for certain appliances and equipment, and currently covers more than 60 different products. Authority to undertake this effort was granted by Congress, and DOE follows a four-phase process when reviewing existing and developing new standards.
Implementing Agency: Executive director of the department of public health and environment


Name: CO Stat. § 6-7.5-101 et seq.
Date Enacted: 05/30/2019
Effective Date: 01/01/2021


Name: Media line Colorado Environmental Health and Sustainability
Organization: Colorado Department of Public Health and Envi
Phone: (303) 691-7870
Name: Kirk Bol
Organization: Colorado Center for Health and Environmental
Phone: (303) 692-2170

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.