What consent is required for Ringless Voicemail in Colorado?

Colorado has a mini-TCPA (C.R.S. § 6-1-901 et seq.) that imposes stricter consent rules than federal TCPA. Prior express written consent is generally required.

What are the calling hour restrictions in Colorado?

Colorado restricts telemarketing calls to 08:00:00–21:00:00 local time.

What is the penalty per violation in Colorado?

Up to $2,000 per violation (or $20,000 for willful violations). Private right of action available.

Is registration required to telemarket in Colorado?

Colorado does not require separate telemarketer registration; federal FTC rules still apply.

Home / States / Colorado

Colorado Telecom Compliance Guide

Telecom Compliance Reference — Updated January 2023

Mini-TCPA State — High Risk

Calling Hours

8:00 AM–9:00 PM

Min Penalty

$2,000

Registration

Not Required

Overview Calling Hours Consent Registration DNC Compliance DNC Registry Enforcement Case Law Legislation

Colorado Ringless Voicemail Compliance

RVM (ringless voicemail drop) compliance rules in Colorado

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Mini-TCPA State — C.R.S. § 6-1-901 et seq.

Colorado has enacted a state-level TCPA that goes beyond federal requirements. Federal compliance alone is not enough for Ringless Voicemail operations here.

Consent Requirements

Consent LevelWritten Consent Required

One-to-One Consent Required

Shared consent from lead generators is NOT valid. Consent must specifically name your company.

ATDS DefinitionBroader than federal

Checkbox ConsentValid

StatuteC.R.S. § 6-1-903

Ringless voicemail is not explicitly addressed in the statute, but the broad ATDS definition and the inclusion of prerecorded messages strongly suggest RVM requires prior express written consent. Conservative compliance approach: treat RVM the same as a prerecorded robocall.

Full consent requirements for all channels →

Calling Rules

Calling Hours8:00 AM – 9:00 PM

RegistrationNot Required

Penalty / Violation$2,000

Willful Violation$20,000

Private Right of ActionYES

Ringless Voicemail Compliance Checklist

01Legal status is unsettled — treat as prerecorded call

02Obtain prior express written consent to be safe

03Check if your state has banned or restricted RVMs

04Include your company name and callback number in message

05Provide opt-out instructions in the message

06Honor opt-out requests from any channel

07Apply calling-hours rules — time of delivery matters

08Scrub DNC lists before sending

09Do not send to numbers on national or state DNC lists

10Consult counsel before deploying at scale in high-risk states

This checklist covers common requirements. State-specific rules may vary. Confirm with legal counsel for high-volume campaigns.

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This is a compliance reference tool, not legal advice. Data compiled from public statutes, LegiScan, CourtListener, state AG offices, and AI-assisted analysis. Verify all information with qualified counsel before relying on it. Full terms & data sources →