Colorado Telemarketing and Cold Calling Laws
In Colorado, sales calls follow the federal 8 a.m. to 9 p.m. window, the state enforces a do-not-call list, and recording a call needs one party’s consent.
Colorado rules next to federal law
| Rule | Colorado | Federal baseline |
|---|---|---|
| Calling hours | No separate state rule confirmed | Telephone solicitations only between 8 a.m. and 9 p.m. in the called person’s local time.47 C.F.R. § 64.1200(c)(1) |
| State do-not-call list | Colorado runs its own No-Call List through the Public Utilities Commission (via a designated agent), which also pulls in Colorado numbers from the National Do Not Call Registry; no one may make telephone solicitations (including texts) to residential or wireless subscribers on the list, and telemarketers must download an update within 30 days after the start of each calendar quarter.C.R.S. §§ 6-1-903(10), 6-1-904(1), (4), 6-1-905 | No telephone solicitations to residential or wireless numbers on the National Do Not Call Registry, subject to the rule’s exemptions such as an established business relationship.47 C.F.R. § 64.1200(c)(2) |
| Autodialer and consent | Using an automated dialing system with a prerecorded message to solicit purchases is prohibited unless the caller has an existing business relationship with the person called and that person consents to hear the message; a violation is a petty offense.C.R.S. § 18-9-311 | Autodialed or prerecorded telemarketing calls to wireless numbers need the called person’s prior express written consent.47 C.F.R. § 64.1200(a)(2) |
| Caller ID | A telephone solicitor may not knowingly use any method to block or otherwise circumvent a subscriber's caller ID when its service or equipment can display the number.C.R.S. § 6-1-904(3) | Telemarketers must transmit caller ID with a number that can be called back during business hours.47 C.F.R. § 64.1601(e) |
| Telemarketer registration | Two separate registrations: commercial telephone sellers must register with the Colorado Attorney General at least 10 days before doing business ($200, then $100 annual renewal) unless exempt, and anyone making telephone solicitations must register with the Colorado No-Call program to access the list (sliding annual fee up to $500; no fee for entities with fewer than five employees).C.R.S. §§ 6-1-303, 6-1-304(1)(a), 6-1-904(1)(b), 6-1-905 | No general federal equivalent |
| Call recording consent | Recording a phone call is lawful with the consent of either the sender or the receiver of the communication.C.R.S. § 18-9-303(1)(a) | Federal law allows recording when one party to the call consents.18 U.S.C. § 2511(2)(d) |
| Business-to-business calls | The No-Call List Act has no express business-to-business exemption, but it only protects residential and wireless telephone service subscribers, not business landlines. The telemarketing registration law excludes a person soliciting solely business purchasers who have previously bought identical or similar goods or services from the seller.C.R.S. §§ 6-1-903(9)-(12), 6-1-904(1), 6-1-302(1)(t) | No general federal equivalent |
Calling Colorado from a sales team
- Schedule call blocks in the prospect’s local time, not the rep’s.
- Check numbers against the National Do Not Call Registry and the Colorado list before each campaign, and honor opt-outs right away.
- If a call may cross into an all-party state, announce the recording anyway.
Trellus dials from the CRM list your reps already work, with each call logged back to the record. See the power and parallel dialer.
Colorado calling questions
What are the legal calling hours in Colorado?
We could not confirm a Colorado calling-hours rule, so the federal limit applies: telephone solicitations only between 8 a.m. and 9 p.m. in the called person’s local time (47 C.F.R. § 64.1200(c)(1)).
Does Colorado have its own do-not-call list?
Colorado runs its own No-Call List through the Public Utilities Commission (via a designated agent), which also pulls in Colorado numbers from the National Do Not Call Registry; no one may make telephone solicitations (including texts) to residential or wireless subscribers on the list, and telemarketers must download an update within 30 days after the start of each calendar quarter. (C.R.S. §§ 6-1-903(10), 6-1-904(1), (4), 6-1-905)
Is Colorado a one-party or all-party consent state for recording calls?
Recording a phone call is lawful with the consent of either the sender or the receiver of the communication. (C.R.S. § 18-9-303(1)(a))
Do Colorado telemarketing rules apply to business-to-business calls?
The No-Call List Act has no express business-to-business exemption, but it only protects residential and wireless telephone service subscribers, not business landlines. The telemarketing registration law excludes a person soliciting solely business purchasers who have previously bought identical or similar goods or services from the seller. (C.R.S. §§ 6-1-903(9)-(12), 6-1-904(1), 6-1-302(1)(t))
Do telemarketers need to register in Colorado?
Two separate registrations: commercial telephone sellers must register with the Colorado Attorney General at least 10 days before doing business ($200, then $100 annual renewal) unless exempt, and anyone making telephone solicitations must register with the Colorado No-Call program to access the list (sliding annual fee up to $500; no fee for entities with fewer than five employees). (C.R.S. §§ 6-1-303, 6-1-304(1)(a), 6-1-904(1)(b), 6-1-905)
This page summarizes Colorado and federal rules for general information. It is not legal advice, rules change, and exemptions depend on the facts of your calls. Read the cited sources or ask counsel before relying on it.