Maryland Consent Requirements
What consent you need before calling or texting consumers in Maryland
One-to-One Consent Required for Some Channels
Consent obtained from a lead generator or shared with multiple sellers is NOT valid in Maryland for affected channels. You must obtain consent specifically naming your company.
Consent Requirements by Channel
| Channel | Consent Level | One-to-One | ATDS Broader | Checkbox Valid |
|---|---|---|---|---|
| Voice Call | Prior Express | No | No | Valid |
| SMS | Prior Express | No | No | Valid |
| AI Voice | Prior Express | No | No | Valid |
| Prerecorded | Prior Express | Required | No | Not Sufficient |
| Ringless Voicemail | Prior Express | No | No | Valid |
| MMS | Prior Express | No | No | Valid |
| Fax | Prior Express | No | No | Valid |
Channel Details
Voice Call
Notes
Manual cold calling to non-DNC numbers is permitted with prior express consent (which can be implied from providing a number in a business context). Must identify caller, company, and purpose at the start of each call. Must scrub against both Maryland state DNC and federal NDNC. No private right of action under Maryland law — but federal TCPA still applies to cell phone calls made with ATDS.
ATDS Definition
Maryland follows the federal ATDS definition post-Facebook v. Duguid. No state-specific broader definition. ATDS means equipment that uses a random or sequential number generator to produce or store telephone numbers and dial them.
Exemptions
EBR exemption applies. Nonprofit and political exemptions exist.
Statute
Md. Code, Com. Law § 14-2201 et seq.
SMS
Notes
SMS marketing to Maryland consumers follows federal TCPA requirements — prior express written consent for marketing texts sent via ATDS. Maryland state law adds registration requirements but does not impose stricter consent standards than federal. One-to-one consent rule (FCC Jan 2025) applies. Purchased lead lists with bundled consent are unusable for automated text campaigns.
ATDS Definition
Maryland does not have a state-specific ATDS definition for text messages that differs from federal standards. Federal TCPA and FCC rules govern SMS consent requirements.
Exemptions
EBR exemption may apply for transactional messages. Marketing texts require prior express written consent under federal TCPA.
Statute
Md. Code, Com. Law § 14-3201 et seq.; 47 U.S.C. § 227
AI Voice
Notes
AI voice agents calling Maryland consumers are governed by federal TCPA for cell phones and Maryland's automated calling provisions. Prior express consent required. AI voice must identify as AI at call start per FTC requirements. No Maryland-specific AI voice statute exists. Federal TCPA private right of action remains available to consumers.
ATDS Definition
No Maryland-specific AI voice statute. AI voice calls that use automated dialing fall under both federal TCPA and Maryland Telephone Consumer Protection Act provisions on automated equipment.
Statute
Md. Code, Com. Law § 14-3201 et seq.; 47 U.S.C. § 227
Prerecorded
Notes
Prerecorded voice messages for solicitation purposes require prior express consent under Maryland law. Federal TCPA requires prior express written consent for prerecorded telemarketing calls to cell phones. Maryland enforcement through AG — no state private right of action, but federal TCPA private action is available.
ATDS Definition
Maryland Telephone Consumer Protection Act prohibits prerecorded voice solicitation without prior express consent. Follows federal ATDS definition.
Exemptions
EBR exemption provides limited relief for existing customer communications about the same product/service.
Statute
Md. Code, Com. Law § 14-3201; 47 U.S.C. § 227(b)(1)(B)
Ringless Voicemail
Notes
RVM is not specifically addressed by Maryland statute. Federal TCPA treatment applies — courts increasingly treat RVM as a "call" requiring prior express consent. For marketing RVM, prior express written consent is the safe standard. No Maryland-specific enforcement guidance on RVM.
ATDS Definition
No Maryland-specific RVM statute or guidance. Federal TCPA treatment of RVM as a "call" applies. FCC has signaled RVM constitutes a call under federal law.
Statute
47 U.S.C. § 227
MMS
Notes
MMS marketing follows the same consent requirements as SMS. Prior express written consent for automated marketing MMS under federal TCPA. Maryland state law does not distinguish between SMS and MMS.
ATDS Definition
MMS treated identically to SMS under both federal and Maryland provisions. No separate MMS standard.
Exemptions
Same exemptions as SMS apply.
Statute
Md. Code, Com. Law § 14-3201 et seq.; 47 U.S.C. § 227
Fax
Notes
Unsolicited fax advertising prohibited under federal TCPA/JFPA. Maryland registration requirements apply to fax solicitations. EBR exemption available under JFPA with proper opt-out notice on each fax.
ATDS Definition
Fax solicitations governed primarily by federal TCPA and Junk Fax Prevention Act (JFPA). Maryland consumer protection statutes also prohibit unsolicited commercial fax.
Exemptions
EBR exemption under JFPA with opt-out notice on each fax.
Statute
Md. Code, Com. Law § 14-2201 et seq.; 47 U.S.C. § 227(b)(1)(C)
What Counts as Valid Consent
Recipient must have previously expressed willingness to receive calls/texts. Oral consent typically sufficient.
Universal rule: Consent must be freely given — it cannot be a condition of purchasing a product or service. Bundled consent (buried in terms of service) is not valid for TCPA purposes.
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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 →