Solar companies and setters calling homeowners in Colorado work under the federal telemarketing rules plus Colorado's own. Here is what each one means for a solar appointment floor, with the official source for every rule.
From official sources, checked September 26, 2026. General information, not legal advice.
Colorado requires some telephone sellers or telemarketers to register or be licensed before calling there. Attorney General registration, plus separate Colorado no call program registration. Check the exemptions before your floor dials Colorado.
C.R.S. 6-1-303; 6-1-904(1)(b)Colorado sets no narrower window in the statutes reviewed, so the federal 8 a.m. to 9 p.m. window at the homeowner's location applies.
47 CFR 64.1200(c)(1)Colorado keeps its own do not call list. Colorado no call list includes Colorado numbers from national registry. Scrub against it as well as the National Do Not Call Registry.
C.R.S. 6-1-904, 6-1-905Colorado has its own law on automated or recorded sales calls. Autodialed prerecorded sales messages need existing relationship and consent. It can be stricter than the federal rules.
C.R.S. 18-9-311Colorado allows recording with one party's consent. Consent of one party to the call.
C.R.S. 18-9-303, 18-9-304Colorado requires commercial telephone sellers to register with the Attorney General, requires telephone solicitors to register for and honor the Colorado no call list, restricts automated dialing systems with prerecorded sales messages, and allows call recording with one party's consent.
Solar sales companies must give a disclosure form and written contract terms with a 3 business day right to cancel that runs from receipt of the signed agreement, follow rules for salespeople such as visiting hours and no solicitation signs, and may not imply a utility affiliation. Violations are deceptive trade practices. It applies to agreements entered on or after July 1, 2026.
Official sourceColorado's Uniform Consumer Credit Code gives buyers 3 business days to cancel home solicitation sales made on consumer credit; cash sales may fall outside it. C.R.S. 5-3-401 to 5-3-405
Checked October 14, 2026. General information, not legal advice.
Federal rules and Colorado's own rules both apply: the National Do Not Call Registry, the calling window, consent rules for automated calls and texts, and any Colorado registration requirement. The Colorado rules page lists each one with its source. General information, not legal advice.
The research found no narrower Colorado window, so the federal 8 a.m. to 9 p.m. window at the homeowner's location applies.
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