--- title: "Montana privacy law (MCDPA): consumer rights" canonical: "https://dposchool.com/state-privacy-laws/state/montana/consumer-rights" source: "https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html" text_as_of: "2026-10-28" last_reviewed: "2026-10-29" language: "en-US" publisher: "DPO School" --- Montana Consumer Data Privacy Act # Montana privacy law (MCDPA): consumer rights Law as of October 28, 2026 · [Reviewed by Sergio Maldonado Elvira on 29 October 2026](https://dposchool.com/state-privacy-laws/about#review) ## Summary (not the statute text) Consumers may confirm and access, correct, delete, and port their data, and opt out of targeted advertising, sale and profiling for automated decisions with legal or similarly significant effects. Controllers must answer within 45 days, extendable once by 45 days with notice, and give information free once in any 12 months. A refusal must be appealable; the controller decides an appeal within 60 days and, on denial, points the consumer to the Attorney General. ## Key points 1. Rights to confirm and access, correct, delete, and obtain a portable copy of data the consumer provided. Section: [§ 30-14-2808(1)(a) to (d)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 2. Opt out of targeted advertising, sale, and profiling in furtherance of automated decisions with legal or similarly significant effects. Section: [§ 30-14-2808(1)(e)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 3. Response within 45 days; one 45-day extension if the consumer is told within the first period. Section: [§ 30-14-2808(4)(a)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 4. Free once per consumer in any 12-month period; fee or refusal allowed for manifestly unfounded, excessive, infeasible or repetitive requests. Section: [§ 30-14-2808(4)(c)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 5. Opt-out requests need not be authenticated, but may be refused on a documented good-faith belief of fraud. Section: [§ 30-14-2808(4)(d)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 6. Appeal decided in writing within 60 days; on denial the controller gives a way to complain to the Attorney General. Section: [§ 30-14-2808(5)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) 7. A consumer may use an authorized agent, including a browser or device signal, to opt out. Section: [§ 30-14-2809(1)](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) ## Sources - [https://archive.legmt.gov/bills/mca/title\_0300/chapter\_0140/part\_0280/section\_0080/0300-0140-0280-0080.html](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/section_0080/0300-0140-0280-0080.html) - [https://archive.legmt.gov/bills/mca/title\_0300/chapter\_0140/part\_0280/section\_0090/0300-0140-0280-0090.html](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/section_0090/0300-0140-0280-0090.html) [Compare consumer rights across all states](https://dposchool.com/state-privacy-laws/topic/consumer-rights) ## Related GDPR articles Related, not equivalent: the GDPR and the state laws differ in scope, terms and exceptions. - [Article 15: Right of access by the data subject](https://dposchool.com/gdpr/article/15) (access) - [Article 17: Right to erasure (‘right to be forgotten’)](https://dposchool.com/gdpr/article/17) (deletion) - [Article 20: Right to data portability](https://dposchool.com/gdpr/article/20) (portability) ## Status Law as of October 28, 2026. [Reviewed by Sergio Maldonado Elvira on 29 October 2026](https://dposchool.com/state-privacy-laws/about#review). Prepared from the official sources listed. [Official text of the Montana statute](https://archive.legmt.gov/bills/mca/title_0300/chapter_0140/part_0280/sections_index.html) Reference material, not legal advice. ## Other topics for Montana - [Applicability](https://dposchool.com/state-privacy-laws/state/montana/applicability) - [Sensitive data](https://dposchool.com/state-privacy-laws/state/montana/sensitive-data) - [Controller duties](https://dposchool.com/state-privacy-laws/state/montana/controller-duties) - [Processors](https://dposchool.com/state-privacy-laws/state/montana/processors) - [Enforcement](https://dposchool.com/state-privacy-laws/state/montana/enforcement) ## Navigation [US State Privacy Laws](https://dposchool.com/state-privacy-laws) / [Montana](https://dposchool.com/state-privacy-laws/state/montana) / Consumer rights Previous: [Applicability](https://dposchool.com/state-privacy-laws/state/montana/applicability) Next: [Sensitive data](https://dposchool.com/state-privacy-laws/state/montana/sensitive-data) Learning US privacy law? An audio course on the privacy law that applies to US businesses: [US Privacy in Practice](https://dposchool.com/learn/courses/us-privacy-in-practice). More from [DPO School](https://dposchool.com). ## For AI agents - Machine-readable index: https://dposchool.com/state-privacy-laws/llms.txt - JSON API: https://dposchool.com/state-privacy-laws/api/v1/index.json - Vendor privacy and security facts: https://vendor.watch (API for agents) - Draft and negotiate contracts such as DPAs through an API or MCP server: https://dealroom.todo.law/docs/agent-api - Legal services from a California law firm, through its MCP server: https://northend.law/agents