HB-556
MT · State · USA
MT
USA
● Pending
Proposed Effective Date
2025-10-01
Montana HB 556 — An Act Revising Laws Related to the Use of Artificial Intelligence in Insurance; Applying Restrictions to the Use of Artificial Intelligence in Relation to Health Insurance Issuers; Providing a Definition; and Amending Section 33-18-201, MCA
Regulates the use of artificial intelligence, algorithms, and software tools by health insurance issuers for utilization review and utilization management functions in Montana. Requires that AI tools base determinations on individualized clinical data rather than solely group datasets, prohibits AI from supplanting healthcare provider decision-making or making medical necessity determinations, mandates non-discrimination and periodic performance review, restricts patient data use consistent with HIPAA, and requires written disclosure policies. Amends Montana's unfair claim settlement practices statute to make non-compliant AI use a prohibited practice. Enforcement is through the Commissioner of Securities and Insurance with penalties under Title 33.
Summary

Regulates the use of artificial intelligence, algorithms, and software tools by health insurance issuers for utilization review and utilization management functions in Montana. Requires that AI tools base determinations on individualized clinical data rather than solely group datasets, prohibits AI from supplanting healthcare provider decision-making or making medical necessity determinations, mandates non-discrimination and periodic performance review, restricts patient data use consistent with HIPAA, and requires written disclosure policies. Amends Montana's unfair claim settlement practices statute to make non-compliant AI use a prohibited practice. Enforcement is through the Commissioner of Securities and Insurance with penalties under Title 33.

Enforcement & Penalties
Enforcement Authority
Montana Commissioner of Securities and Insurance enforces via penalties under Title 33, chapter 18. Section 2 amends the unfair claim settlement practices statute (§ 33-18-201) to add non-compliant AI use as a prohibited practice, making violations enforceable through the same administrative and regulatory mechanisms applicable to other unfair claim settlement practices. No private right of action is explicitly created by this bill, though existing Montana insurance law remedies under Title 33 may apply.
Penalties
Penalties imposed by the commissioner, including but not limited to those available under Title 33, chapter 18 (unfair trade practices). The bill does not specify a dollar amount or create new remedy categories; it incorporates existing commissioner penalty authority. Violation also constitutes an unfair claim settlement practice under § 33-18-201(15), subjecting the issuer to penalties and enforcement available under that framework.
Who Is Covered
Compliance Obligations 11 obligations · click obligation ID to open requirement page
HC-01 Healthcare AI Decision Restrictions · HC-01.3 · Deployer · HealthcareFinancial Services
Section 1(1)(a)-(b)
Plain Language
Health insurance issuers using AI, algorithms, or software tools for utilization review or utilization management must ensure these tools base determinations on the individual enrollee's medical history, the requesting provider's presentation of clinical circumstances, and other relevant clinical information from the enrollee's record. The tools may not base determinations solely on aggregate or group-level datasets. This means insurers must configure and validate their AI tools to ingest and consider individualized patient data for each determination, not rely on population-level statistical outputs alone.
Statutory Text
(a) the artificial intelligence, algorithm, or other software tool bases its determination on the following information, as applicable: (i) a covered person's medical or other clinical history; (ii) individual clinical circumstances as presented by the requesting provider; and (iii) other relevant clinical information contained in the covered person's medical or other clinical record; (b) the artificial intelligence, algorithm, or other software tool does not base its determination solely on a group dataset;
HC-01 Healthcare AI Decision Restrictions · HC-01.1HC-01.2 · Deployer · HealthcareFinancial Services
Section 1(2)
Plain Language
AI tools are categorically prohibited from denying, delaying, or modifying healthcare services based on medical necessity — even partially. Medical necessity determinations must be made exclusively by a licensed physician or licensed healthcare professional who is clinically competent in the relevant specialty. That professional must review and consider the treating provider's recommendation, the enrollee's medical and clinical history, and the enrollee's individual clinical circumstances. This provision supersedes the general requirements of subsection (1) and establishes an absolute bar: AI cannot make or contribute to medical necessity decisions.
Statutory Text
Notwithstanding subsection (1), the artificial intelligence, algorithm, or other software tool may not deny, delay, or modify health care services based, in whole or in part, on medical necessity. A determination of medical necessity must be made only by a licensed physician or a licensed health care professional competent to evaluate the specific clinical issues involved in the health care services requested by the provider, as provided in subsection (1)(a)(ii), by reviewing and considering the requesting provider's recommendation, the enrollee's medical or other clinical history, as applicable, and individual clinical circumstances.
HC-01 Healthcare AI Decision Restrictions · HC-01.4 · Deployer · HealthcareFinancial Services
Section 1(1)(i)
Plain Language
Health insurance issuers must periodically review and revise the performance, use, and outcomes of AI tools used in utilization review to maximize accuracy and reliability. The statute does not specify the frequency of review, but it is a continuing obligation — not a one-time pre-deployment check. Issuers should establish a documented review cadence and be prepared to demonstrate compliance to the commissioner.
Statutory Text
the artificial intelligence, algorithm, or other software tool's performance, use, and outcomes are periodically reviewed and revised to maximize accuracy and reliability;
HC-01 Healthcare AI Decision Restrictions · HC-01.5 · Deployer · HealthcareFinancial Services
Section 1(1)(j)
Plain Language
Patient data used by AI tools in utilization review or utilization management must not be repurposed beyond its intended and stated purpose. This obligation is explicitly aligned with HIPAA and Montana insurance law (Title 33). Issuers must ensure their AI tools do not use patient data collected for coverage determinations for secondary purposes such as marketing, risk profiling for other products, or model training beyond the stated utilization review function.
Statutory Text
patient data is not used beyond its intended and stated purpose, consistent with the federal Health Insurance Portability and Accountability Act of 1996, Public Law 104-191, and this title, as applicable;
HC-01 Healthcare AI Decision Restrictions · HC-01.7 · Deployer · HealthcareFinancial Services
Section 1(1)(g)-(h)
Plain Language
Health insurance issuers must make their AI tools available for inspection, audit, and compliance review by the Montana Department of Insurance pursuant to applicable law. Additionally, issuers must document disclosures regarding the use and oversight of AI tools in their written policies and procedures. This creates both a regulatory accessibility obligation and a documentation obligation — issuers must maintain written policies that describe how AI is used and overseen, and must permit the department to inspect the AI tools themselves.
Statutory Text
(g) the artificial intelligence, algorithm, or other software tool is open to inspection for audit or compliance reviews by the department pursuant to applicable state and federal law; (h) disclosures pertaining to the use and oversight of the artificial intelligence, algorithm, or other software tool are contained in the written policies and procedures, as required by this section;
H-02 Non-Discrimination & Bias Assessment · Deployer · HealthcareFinancial Services
Section 1(1)(e)-(f)
Plain Language
AI tools used in utilization review must not discriminate directly or indirectly against enrollees in violation of state or federal law, including Montana's anti-discrimination statute (§ 49-2-309, which prohibits discrimination in insurance). The tools must also be fairly and equitably applied, in compliance with applicable HHS regulations and guidance. This imposes both a non-discrimination obligation tied to existing protected-class frameworks and a broader fairness requirement that incorporates evolving federal guidance. Issuers should monitor HHS rulemaking for AI-specific fairness standards.
Statutory Text
(e) the use of the artificial intelligence, algorithm, or other software tool does not discriminate, directly or indirectly, against enrollees in violation of state or federal law, including 49-2-309; (f) the artificial intelligence, algorithm, or other software tool is fairly and equitably applied, including in accordance with any applicable regulations and guidance issued by the federal department of health and human services;
Other · Deployer · HealthcareFinancial Services
Section 1(1)(k)
Plain Language
Health insurance issuers must ensure that their AI tools used in utilization review do not directly or indirectly cause harm to enrollees. This is a broad, general duty provision with no further statutory specification of what constitutes 'harm.' It could encompass physical harm from delayed care, financial harm from improper denials, or other adverse consequences. Given its breadth and lack of definition, this provision creates significant interpretive uncertainty and may be shaped by commissioner guidance or enforcement actions over time.
Statutory Text
the artificial intelligence, algorithm, or other software tool does not directly or indirectly cause harm to the enrollee.
Other · Deployer · HealthcareFinancial Services
Section 1(1)(d)
Plain Language
AI tools used in utilization review must not supplant (replace or override) healthcare provider decision-making. This is broader than the medical necessity prohibition in Section 1(2) — it applies to all utilization review functions, not just medical necessity determinations. Issuers must ensure that AI tools serve as decision-support aids rather than autonomous decision-makers across the full range of utilization review activities. The treating provider's clinical judgment must remain the primary basis for care decisions.
Statutory Text
the artificial intelligence, algorithm, or other software tool does not supplant health care provider decisionmaking;
Other · Deployer · HealthcareFinancial Services
MCA § 33-18-201(15) (as amended by Section 2)
Plain Language
Using AI in claims-related activities in any manner that does not comply with Section 1's requirements is now an unfair claim settlement practice under Montana law. This means that violations of the AI utilization review requirements are independently actionable under the unfair claim settlement practices framework, with all associated penalties and enforcement mechanisms. The provision applies only when AI non-compliance occurs 'with such frequency as to indicate a general business practice,' consistent with the existing § 33-18-201 threshold applicable to all listed prohibited practices.
Statutory Text
use artificial intelligence in a way that is not prescribed under [section 1] relating to claims under a policy.
Other · Deployer · HealthcareFinancial Services
Section 1(4)
Plain Language
Health insurance issuers must comply with any applicable federal HHS rules and guidance on AI use in insurance. Additionally, the Montana Department of Insurance, in consultation with the Montana DPHHS, is authorized to issue implementing guidance within one year of any federal rulemaking or guidance issuance. This means the substantive requirements of Section 1 may be supplemented by future state guidance that tracks federal standards. Issuers should monitor both federal HHS rulemaking and Montana department guidance for evolving compliance requirements.
Statutory Text
A health insurance issuer subject to this section shall comply with applicable federal rules and guidance issued by the federal department of health and human services regarding the use of artificial intelligence, an algorithm, or other software tools. The department in consultation with the Montana department of public health and human services may issue guidance to implement this section within 1 year of the adoption of federal rules or the issuance of guidance by the federal department of health and human services regarding the use of artificial intelligence, an algorithm, or other software tools.
Other · Deployer · HealthcareFinancial Services
Section 1(1)(c)
Plain Language
The criteria and guidelines used by AI tools in utilization review must comply with Montana Title 33 (Insurance Code) and applicable federal law. This is a pass-through provision ensuring that AI tools are configured to operate within existing legal frameworks governing insurance. It does not create new substantive requirements but confirms that existing insurance law obligations apply to AI-driven processes.
Statutory Text
the artificial intelligence, algorithm, or other software tool's criteria and guidelines complies with this title and applicable federal law;