Colorado E-Bike Laws (2026): C.R.S. §42-4-1412 + HB 25-1197 Battery Certification Mandate

The 30-second answer

Colorado adopted the federal three-class e-bike framework in 2017 through HB 17-1151 ("Electrical Assisted Bicycles Regulation Operation" — House sponsors Rep. Chris Hansen (D) and Rep. Yeulin Willett (R); Senate sponsors Sen. Owen Hill (R) and Sen. Andy Kerr (D)). The bill passed the House 52-13 on 23 February 2017 and the Senate 28-7 on 22 March 2017, was signed by Gov. John Hickenlooper on 4 April 2017 as Chapter 98, and took effect 9 August 2017.

The class definitions live in C.R.S. §42-1-102(28.5); the operating rules in C.R.S. §42-4-1412. E-bikes are statutorily excluded from "motor vehicle" — no driver license, no registration, no insurance at any class.

Three things make Colorado different from most three-class states:

1. HB 25-1197 (2025) added a battery-certification mandate. Effective 1 January 2027, every lithium-ion e-bike battery sold, leased, rented, or reconditioned in Colorado must be certified to UL 2849 (e-bike electrical system) or EN 15194 (European e-bike standard). Enforcement runs through the Colorado Consumer Protection Act — civil penalties up to $20,000 per violation.
2. Class 3 is banned from bike and pedestrian paths by default under §42-4-1412(14)(b) — unlike Florida, Arizona, Nevada, and Utah. The local authority can opt in.
3. Local trail-access rules are unusually aggressive. Boulder OSMP, Aspen/Pitkin County, Summit County/Breckenridge, and Vail have each carved Class 2 (and sometimes Class 3) entirely out of their multi-use trail networks. The statewide default (Class 1+2 permitted on paths) is not the experience most riders in the resort corridor have.

Colorado also runs the most generous statewide e-bike incentive in the country — a refundable retailer tax credit delivered as an instant point-of-sale discount, currently $225 per resident per calendar year (down from $450 through early 2026), funded by HB 23-1272.

Quick reference

All three classes are capped at <750 W rated motor and must have operable pedals (§42-1-102(28.5)).

The three-class system in Colorado

Colorado's class definitions in C.R.S. §42-1-102(28.5) match the PeopleForBikes federal model:

• Class 1: electric motor that provides assistance only while the rider is pedaling, and that ceases to provide assistance when the bicycle reaches 20 mph
• Class 2: electric motor that may be used exclusively to propel the bicycle (throttle permitted), and that ceases to provide assistance at 20 mph
• Class 3: electric motor that provides assistance only while the rider is pedaling, and that ceases to provide assistance when the bicycle reaches 28 mph

Class 1 — pedal-assist only, 20 mph cutoff

Permitted on streets, bike lanes, and paths where bicycles are authorised under §42-4-1412(14)(a)(I) — unless a local authority has affirmatively prohibited Class 2 (which sweeps Class 1 along with it in some jurisdictions). Class 1 is the universally accepted class — every major Colorado open-space + state-park trail that allows e-bikes allows Class 1.

Class 2 — pedal-assist plus throttle, 20 mph cutoff

Same speed cap as Class 1 but throttle is permitted. §42-4-1412(14)(a)(II) explicitly authorises a local authority to prohibit Class 2 from bike or pedestrian paths within its jurisdiction. Aspen/Pitkin County, Summit County, Breckenridge, and parts of Boulder OSMP have used this authority — see "Local + jurisdictional variations" below.

Class 3 — pedal-assist only, 28 mph cutoff

Speed cap raised to 28 mph but no throttle. Class 3 carries three Colorado-specific restrictions:

• Banned from bike and pedestrian paths by default under §42-4-1412(14)(b) — exceptions only where the path is within a street or highway, or where the local authority has affirmatively permitted Class 3 by ordinance
• Minimum operator age 16 under §42-4-1412(15)(a) — a person under 16 may not ride a Class 3 e-bike "upon any street, highway, or bike or pedestrian path." A child under 16 may still ride as a passenger on a designed passenger seat.
• CPSC- or ASTM-compliant helmet required for under-18 riders under §42-4-1412(15)(b), secured with a chin strap. Failure to wear a helmet shall not constitute negligence or contributory negligence in any civil action under §42-4-1412(15)(c).

HB 25-1197 — the battery-certification mandate (effective 6 Aug 2025; full bite 1 Jan 2027)

House Bill 25-1197 — "Sale of Electrical Assisted Bicycles Requirements" — was sponsored in the House by Rep. Lesley Smith (D) and Rep. Rick Taggart (R) and in the Senate by Sen. Judy Amabile (D) and Sen. Matt Ball (D). It passed the House 46-16-3 on 10 March 2025 and the Senate 23-11 on 15 April 2025, was signed on 28 May 2025 as Chapter 279, and took effect 6 August 2025. The class/speed/wattage labeling and certain seller-disclosure provisions become operative 1 January 2027.

HB 25-1197 does four things:

1. UL 2849 / EN 15194 battery-certification mandate (effective 6 August 2025; labeling provisions effective 1 January 2027)

A person — including manufacturers, distributors, assemblers, refurbishers, and retailers — shall not manufacture, distribute, assemble, recondition, sell, offer to sell, lease, or rent a lithium-ion battery as part of, or intended for use in, an electrical assisted bicycle unless the battery has been certified by an accredited testing laboratory for compliance with UL 2849 or EN 15194 (or an alternative standard approved by the Colorado Division of Fire Prevention and Control). UL 2849 covers the e-bike electrical system as a whole and incorporates UL 2271 cell/pack testing by reference; EN 15194 is the European e-bike standard. The certification requirement is effective with the general bill (6 August 2025); the class/speed/wattage labeling and certain seller-disclosure provisions take effect 1 January 2027.

Enforcement runs through the Colorado Attorney General + district attorneys under the Colorado Consumer Protection Act. Violations are deceptive trade practices subject to civil penalties up to $20,000 per violation under C.R.S. §6-1-112, plus injunctive relief and consumer restitution under §6-1-110.

2. Point-of-sale Class 3 age disclosure

A retailer selling a vehicle capable of operating as a Class 3 e-bike must disclose Colorado's under-16 prohibition at the point of sale. This is the first state-mandated age disclosure on Class 3 sales.

3. Anti-mislabeling deceptive-trade-practice hook

Selling or advertising as an "e-bike" any vehicle that exceeds the three-class system's speed or wattage limits is now an unlawful deceptive trade practice. Out-of-class 28+ mph throttle scooters and "moped-style" sit-down devices marketed as e-bikes fall under CCPA enforcement — same $20,000-per-violation civil penalty.

4. Modified e-bikes lose statutory status

A bike modified so that it no longer meets a class definition — or designed to be easily reconfigured out of class — is excluded from "electrical assisted bicycle" status. Multi-class switchable bikes must comply with every class they can operate in, and must label every class capability (or the highest class) starting 1 January 2027.

Where each class can ride

Streets, highways, and bike lanes

All three classes are permitted statewide under §42-4-1412.

Bike and pedestrian paths

• Class 1 + Class 2: allowed by default under §42-4-1412(14)(a)(I) — but a local authority may prohibit Class 2 under §42-4-1412(14)(a)(II)
• Class 3: banned by default under §42-4-1412(14)(b) — exception only where the path is within a street/highway or the local authority has affirmatively permitted Class 3

Sidewalks

No statewide e-bike sidewalk rule — purely a local-ordinance question. Denver caps sidewalk cycling at 6 mph and only on designated routes; most Front Range cities prohibit sidewalk riding in business districts.

Mountain-bike singletrack

Variable by land manager. Most front-range open-space agencies default to Class 1 only on natural-surface singletrack — Boulder OSMP, Pitkin County, Summit County, Aspen, Vail, and others have published e-bike rules per the §5 list below. The state default (Class 1+2 on multi-use paths) is not how most singletrack in Colorado is governed.

Colorado State Parks and Wildlife Areas

Per Colorado Parks and Wildlife:

• State Parks: Class 1 and Class 2 e-bikes are permitted on roadways, designated bike lanes, multi-use trails, and other areas open to non-motorized bicycles. Class 3 is generally restricted to roadways. No registration or permit required.
• State Wildlife Areas (SWA): e-bikes are restricted to designated roads and motorized-use areas only — singletrack is closed to all bicycles.
• State Trust Lands: same as SWA — designated motorized routes only.

National Park Service units in Colorado

NPS Order #3376 (final rule effective 8 April 2020) lets each park superintendent decide via the park's Compendium:

• Rocky Mountain National Park — e-bikes permitted where traditional bicycles are: primarily Trail Ridge Road, Bear Lake Road, and the few paved frontcountry corridors. Backcountry singletrack remains closed to all bicycles, e-bike or otherwise (wilderness designation, 16 U.S.C. §1133(c)).
• Mesa Verde National Park — bicycles on park roads; e-bikes follow under Order 3376 default.
• Black Canyon of the Gunnison National Park — same baseline; verify Class 3 treatment against the current Compendium.
• Great Sand Dunes National Park — bicycles permitted on park roads; e-bikes follow Order 3376 default.
• Curecanti National Recreation Area — same default; verify current Compendium for any park-specific restrictions.

Local + jurisdictional variations — Colorado has more aggressive local rules than almost any other state

Boulder — Open Space + Mountain Parks (OSMP), effective 1 July 2023

Per Boulder OSMP's e-bike guide, Class 1 and Class 2 e-bikes are permitted on a defined subset of OSMP multi-use trails — including Plains Trails east of Broadway, Boulder Canyon Trail, Chapman Drive, Foothills South, and Wonderland Lake. Class 3 is prohibited on every OSMP trail and multi-use path. The rule was approved by Boulder City Council in June 2023 (following Open Space Board of Trustees review in February 2023) and took effect 1 July 2023.

Denver — Cherry Creek Trail and the 6 mph sidewalk rule

• Cherry Creek Trail: Class 1 and Class 2 permitted; Class 3 prohibited. Soft 15 mph trail speed.
• Sidewalks: Denver Revised Municipal Code restricts sidewalk operation to 6 mph maximum, designated routes only (verify the current DRMC section number against the Denver code before relying on this — section number historically §54-576).
• High Line Canal Trail + South Platte River Trail — Class 1+2 permitted.

Aspen + Pitkin County — Class 1 only on county multi-use trails

Per Pitkin County's e-bike page, Pitkin County's Title 12 ordinance (amended 2018) permits Class 1 only on the Rio Grande Trail (Emma Road to Aspen), Brush Creek Trail, Owl Creek Trail, East of Aspen Trail, AspenMass Trail, the Jaffee Connector, and the Basalt-Old Snowmass Trail. No e-bikes at all on singletrack open-space trails or in White River National Forest within Pitkin County.

Summit County + Breckenridge — Class 1 only on Recpath

Per Summit County BOCC, the entire county Recpath system is Class 1 only. Class 2, Class 3, and unclassified e-bikes are prohibited. Breckenridge adopted a parallel ordinance to match.

Vail + Beaver Creek

Per the Vail Valley Mountain Trails Alliance, Vail permits Class 1 and Class 2 on designated paved pathways; Class 3 is prohibited on rec paths. Beaver Creek limits resort-managed paths to Class 1.

Colorado Springs — Class 1 reclassified as non-motorized for trail access (effective 1 July 2025)

Colorado Springs City Council voted 6-3 on 11 February 2025 to redefine Class 1 e-bikes as non-motorized for trail-access purposes. Per coloradosprings.gov/Ebikes, the rule took effect 1 July 2025 and opens Class 1 access to the city's urban trail system (Cottonwood Creek, Foothills, Pikes Peak Greenway, Sand Creek). Class 2 and Class 3 remain motorized and are restricted to streets and designated motorized routes.

Fort Collins — Class 1 + 2 on paved trails since 2021

Per Fort Collins Parks, Natural Areas and Trails, Class 1 and Class 2 are permitted on Fort Collins paved trails (Spring Creek, Mason, Power, Poudre) following a 2020 pilot. Other e-mobility devices (e-scooters, e-skateboards) remain prohibited.

Helmet, age, license, and registration

Helmet

Class 3 only, under 18 only. §42-4-1412(15)(b) requires any operator or passenger under 18 on a Class 3 e-bike to wear a CPSC- or ASTM-compliant helmet, secured with a chin strap. No statewide helmet law for Class 1 or Class 2 at any age, and no helmet rule for adults on Class 3.

Colorado's helmet statute also includes a non-negligence clause — §42-4-1412(15)(c): failure to wear a helmet under this subsection "shall not constitute negligence or contributory negligence" in any civil action.

Minimum age

• Class 1 + Class 2: no statewide minimum age (local ordinances may set one)
• Class 3: 16 years old under §42-4-1412(15)(a). Below 16, a child may ride as a passenger on a designed passenger seat.

Driver license, insurance, and registration

None of these are required. E-bikes are excluded from "motor vehicle" under §42-1-102(28.5) — Title 42 driver-licensing, registration, and financial-responsibility provisions do not apply to compliant Class 1/2/3 e-bikes.

Recent legislation (2017-2026)

Colorado's e-bike statute has been amended twice since enactment:

Track active bills at the Colorado General Assembly site.

The Colorado e-bike instant point-of-sale discount

Authorized by HB 23-1272 and administered by the Colorado Energy Office + Department of Revenue, the Colorado e-bike credit is structured as a refundable retailer tax credit that retailers deliver as an instant discount at the point of sale — not a post-purchase rebate.

Credit structure (two halves to understand — the retailer side and the consumer side):

• Retailer-side credit: $500 per qualifying e-bike for retailer tax year ending 30 June 2026; $250 per qualifying e-bike for retailer tax year starting 1 July 2026.
• Consumer-side discount (delivered at point-of-sale): $450 per Colorado resident through 31 December 2025; $225 per Colorado resident from 1 January 2026 forward.

Eligibility: Colorado resident; one credit per resident per calendar year. The e-bike must have a motor under 750 W, operable pedals, and meet the Department of Revenue's certification eligibility (current DOR guidance accepts UL 2849, UL 2271, or EN 15194 for the rebate). Participating retailers are listed at the Energy Office page; see tax.colorado.gov/electric-bicycle-tax-credit for DOR rules.

Penalties for violations

• Riding a Class 3 on a bike/pedestrian path in violation of §42-4-1412(14)(b): Class B traffic infraction under C.R.S. §42-4-1701 — typical fine $15-$100 plus surcharges.
• Class 3 under 16 / failure to wear a helmet under 18 on Class 3: Class B traffic infraction. (Statute also bars these from being treated as comparative negligence in civil tort actions — §42-4-1412(15)(c).)
• Selling/advertising a non-e-bike as an e-bike (HB 25-1197): deceptive trade practice under C.R.S. §6-1-112 — civil penalty up to $20,000 per violation, plus AG/DA injunctive remedies under §6-1-110.
• Selling a non-UL 2849 / non-EN 15194 lithium-ion e-bike battery after 1 Jan 2027: same CCPA enforcement track — deceptive trade practice, $20,000 per violation.
• Modifying an e-bike out of class and operating it as an e-bike: loses statutory e-bike status. Treated as an unregistered motor vehicle, moped, or motorcycle depending on power — exposing the operator to license, registration, and insurance violations under Title 42 (potentially a Class 2 misdemeanor for operating an unregistered motor vehicle).

Special situations

Sur-Ron, Talaria, and other "e-moto" bikes

Not e-bikes under Colorado law. They exceed the 750 W cap and 28 mph speed cutoff in §42-1-102(28.5), and lack operable pedals that physically propel the bike. Colorado treats them as mopeds (under §42-1-102(58)) or motorcycles — license + registration + insurance now required, and most e-motos lack the DOT-spec equipment needed to actually complete moped/motorcycle registration. Practical result: ride on private property or designated motorized off-highway trails only.

HB 25-1197 specifically targets this market — advertising a Sur-Ron-style device as an "e-bike" is now a deceptive trade practice under the CCPA.

Modifying a Class 2 to exceed 20 mph

De-restricting a Class 2 e-bike's throttle above 20 mph takes it out of §42-1-102(28.5) and into the moped or motorcycle category. Under HB 25-1197, a bike "designed to be easily reconfigured out of class" loses statutory e-bike status entirely — selling such a bike (or advertising it as an e-bike) is now a CCPA violation.

Out-of-state e-bikes crossing into Colorado

A compliant California, Texas, or Florida e-bike is also a compliant Colorado e-bike — the §42-1-102(28.5) definitions match the federal class structure. The reverse is true too: a Texas Class 3 e-bike ridden onto a Colorado bike path is in violation of §42-4-1412(14)(b) (Class 3 banned from paths) unless the local authority has opted in. Plan rides accordingly when travelling across state lines.

Can a 14-year-old ride a Class 2 e-bike in Colorado?

Statewide: yes — no minimum age for Class 1 or Class 2. Locally: verify the local-authority ordinance. Some Front Range jurisdictions have age provisions or photo-ID requirements on shared-use paths.

Bike-share programs

Denver's Lyft pedal-assist fleet (post-B-cycle) operates Class 1 e-bikes at 20 mph motor cutoff — fully compliant under §42-1-102(28.5)(a). Boulder has BCycle/Lyft service in a similar configuration. No license, registration, or insurance is needed to use either system.

What about other states?

Colorado's framework is shared by most three-class states but with the strictest battery-certification regime in the country (post-2027):

• California — Class 3 banned from paths; SB 1271 UL 2849/2271 certification mandate (operative 1 Jan 2026); mandatory all-ages helmet on Class 3
• New York — Class 3 capped at 25 mph; NYC 15 mph operating cap; NYC Local Law 39 UL 2849 mandate (first US battery-cert law)
• New Jersey — abolished three-class framework January 2026 (S4834/A6235); license + registration + insurance required for ALL e-bikes
• Texas — three-class state preempts most local bans; no statewide helmet; Class 3 min age 15; state parks paved roads only
• Florida — Class 3 allowed on bike paths at state level; CS/SB 382 (2026) adds a 10 mph sidewalk-pedestrian rule
• Massachusetts — Class 1 + Class 2 only; Class 3 falls under §1B motorized bicycle
• Pennsylvania — single "pedalcycle with electric assist" category; 20 mph cap; Class 3 effectively banned

For a quick state-by-state check, use the e-bike legality checker. For the federal framework, read Class 1, 2, 3 e-bikes explained.

Bottom line

Colorado riders: all three classes are street-legal under §42-4-1412, with no driver license, no registration, no insurance. Class 3 needs a 16+ operator and an under-18 helmet, and is banned from bike and pedestrian paths by default — verify the local-authority ordinance before riding Class 3 on any shared-use path.

HB 25-1197 (effective 6 August 2025): every lithium-ion e-bike battery sold or rented in Colorado must be certified to UL 2849 or EN 15194 (or an alternative approved by the Colorado Division of Fire Prevention and Control). Out-of-class throttle devices marketed as "e-bikes" are a deceptive trade practice with $20,000-per-violation civil exposure under the CCPA. The class/speed/wattage labeling and certain seller-disclosure provisions phase in on 1 January 2027.

Watch your local ordinance. Boulder OSMP, Aspen/Pitkin County, Summit County/Breckenridge, and Vail have each carved Class 2 (and always Class 3) entirely out of major segments of their multi-use trail networks. The Colorado Springs Class-1-as-non-motorized rule (effective 1 July 2025) opens new urban-trail access for Class 1 riders.

Use the discount. The Colorado Energy Office instant point-of-sale discount is currently $225 per resident per calendar year at participating retailers — one of the most generous state incentives anywhere.

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Sources: C.R.S. §42-1-102 (definitions) + §42-4-1412 (operation); HB 17-1151; HB 23-1272; HB 25-1197; Colorado Energy Office e-bike credit; CPW biking/hiking page; NPS Order 3376 + park compendia (RMNP, Mesa Verde, Black Canyon); municipal codes for Boulder, Denver, Aspen/Pitkin, Summit/Breckenridge, Vail, Colorado Springs, Fort Collins. Verified 16 May 2026.