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Achievable Property & Casualty
50. Michigan Insurance Ethics & Law

Essential Insurance & Rating Practices

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Overview: The Essential Insurance Act

Chapter 21 of the Michigan Insurance Code is known as the Essential Insurance Act. Enacted in 1979, its primary purpose is to ensure that basic property and casualty insurance — particularly automobile and homeowners coverage — remains available and affordable to Michigan residents. Chapter 21 regulates how insurers may price, renew, and cancel personal lines coverage.

Sidenote
Exam Tip

Chapter 21 applies primarily to personal automobile and homeowners insurance. Commercial lines are governed by separate chapters of the Insurance Code.

Rating and Underwriting Standards

Insurers writing personal lines insurance in Michigan must file their rating plans, rules, and underwriting guidelines with DIFS. Rates must not be excessive, inadequate, or unfairly discriminatory. When an insurer intends to use a new rating factor or underwriting criterion, it must demonstrate to the Director that the factor is actuarially justified and does not constitute unfair discrimination.

Producers who understand rate filing requirements are better positioned to explain premium differences to clients and to identify potentially improper denials.

Cancellation of Personal Lines Policies

Chapter 21 imposes strict requirements on mid-term cancellations. After the first 55 days of coverage (the underwriting period), an insurer may cancel only for the following specific grounds:

  • Nonpayment of premium
  • The policy was obtained through material misrepresentation
  • The insured has violated the terms and conditions of the policy
  • The named insured or any resident operator has had driving privileges suspended or revoked
  • The named insured or any resident operator has been convicted of certain specified offenses

Important to Know!

A mid-term cancellation for any reason not specifically permitted under Chapter 21 is unlawful. Producers must communicate valid cancellation grounds accurately and must not assist an insurer in issuing a cancellation notice that lacks a lawful basis.

Notice Requirements for Cancellation and Nonrenewal

Michigan law establishes minimum notice periods that must be strictly followed:

  • Mid-term cancellation (other than nonpayment): at least 30 days’ written notice
  • Mid-term cancellation for nonpayment of premium: at least 10 days’ written notice
  • Nonrenewal: at least 20 days’ notice before the policy expiration date

All cancellation and nonrenewal notices must state the specific reason for the action. A notice that fails to include a valid stated reason is defective, and the cancellation may be deemed ineffective.

Sidenote
Exam Tip

Notice counting begins the day after the notice is mailed or delivered, not on the day of mailing. Producers should always document the date and method of delivery to avoid disputes.

Insured’s Right to Explanation

An insured who receives a cancellation or nonrenewal notice has the right to request, in writing, the specific reasons for the action within 30 days of receiving the notice. The insurer must respond in writing within 10 days of receiving the request.

Producers should proactively inform clients of this right and, when possible, assist clients in determining whether a cancellation notice is lawful before the effective date passes.

MAIPF and the Residual Market

The Michigan Automobile Insurance Placement Facility (MAIPF) is Michigan’s assigned risk plan. It ensures that any vehicle owner who is unable to obtain automobile insurance through the voluntary market can obtain the required minimum coverage. Producers who service MAIPF policies must adhere to the same ethical and legal standards as in the voluntary market, and premiums collected for MAIPF policyholders remain fiduciary funds subject to prompt remittance requirements.

Key Definitions

Definitions
Essential insurance
Basic property and casualty coverage — particularly auto and homeowners — that the legislature determined must remain available to Michigan residents.
Rating plan
The schedule of premiums, credits, and surcharges filed by an insurer that determines the premium charged for a specific risk.
Nonrenewal
An insurer’s decision not to renew a policy at expiration, distinct from a mid-term cancellation.
MAIPF
Michigan Automobile Insurance Placement Facility — the assigned risk mechanism ensuring coverage availability for high-risk drivers.
Material misrepresentation (application)
A false or misleading statement made by an applicant that, if material, may justify rescission or mid-term cancellation.

Overview: The Essential Insurance Act

  • Chapter 21 of Michigan Insurance Code, enacted 1979
  • Ensures availability/affordability of personal auto and homeowners insurance
  • Applies to personal lines only; commercial lines under separate chapters

Rating and Underwriting Standards

  • Insurers must file rating plans, rules, underwriting guidelines with DIFS
  • Rates cannot be excessive, inadequate, or unfairly discriminatory
  • New rating/underwriting factors must be actuarially justified to the Director

Cancellation of Personal Lines Policies

  • First 55 days = underwriting period (broader cancellation rights)
  • After 55 days, cancellation limited to specific grounds:
    • Nonpayment of premium
    • Material misrepresentation on application
    • Violation of policy terms
    • Suspended/revoked driving privileges (insured or resident operator)
    • Conviction of specified offenses
  • Cancellation outside these grounds is unlawful; producers must not assist improper cancellations

Notice Requirements for Cancellation and Nonrenewal

  • Mid-term cancellation (non-nonpayment): 30 days’ written notice
  • Mid-term cancellation (nonpayment): 10 days’ written notice
  • Nonrenewal: 20 days’ notice before expiration
  • Notices must state specific reason; missing reason = defective notice
  • Notice period begins day after mailing/delivery, not day of mailing

Insured’s Right to Explanation

  • Insured may request specific reasons in writing within 30 days of notice
  • Insurer must respond in writing within 10 days of request
  • Producers should inform clients of this right and assist in verifying lawfulness

MAIPF and the Residual Market

  • MAIPF = Michigan’s assigned risk plan for auto insurance
  • Guarantees minimum coverage access for those denied voluntary market insurance
  • Producers must follow same ethical/legal standards as voluntary market
  • MAIPF premiums are fiduciary funds requiring prompt remittance

Key Definitions

  • Essential insurance: basic auto/homeowners coverage required to remain available
  • Rating plan: filed schedule of premiums, credits, surcharges
  • Nonrenewal: insurer declines to renew at expiration (distinct from cancellation)
  • MAIPF: Michigan Automobile Insurance Placement Facility (assigned risk mechanism)
  • Material misrepresentation: false/misleading application statement justifying rescission or cancellation

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Essential Insurance & Rating Practices

Overview: The Essential Insurance Act

Chapter 21 of the Michigan Insurance Code is known as the Essential Insurance Act. Enacted in 1979, its primary purpose is to ensure that basic property and casualty insurance — particularly automobile and homeowners coverage — remains available and affordable to Michigan residents. Chapter 21 regulates how insurers may price, renew, and cancel personal lines coverage.

Sidenote
Exam Tip

Chapter 21 applies primarily to personal automobile and homeowners insurance. Commercial lines are governed by separate chapters of the Insurance Code.

Rating and Underwriting Standards

Insurers writing personal lines insurance in Michigan must file their rating plans, rules, and underwriting guidelines with DIFS. Rates must not be excessive, inadequate, or unfairly discriminatory. When an insurer intends to use a new rating factor or underwriting criterion, it must demonstrate to the Director that the factor is actuarially justified and does not constitute unfair discrimination.

Producers who understand rate filing requirements are better positioned to explain premium differences to clients and to identify potentially improper denials.

Cancellation of Personal Lines Policies

Chapter 21 imposes strict requirements on mid-term cancellations. After the first 55 days of coverage (the underwriting period), an insurer may cancel only for the following specific grounds:

  • Nonpayment of premium
  • The policy was obtained through material misrepresentation
  • The insured has violated the terms and conditions of the policy
  • The named insured or any resident operator has had driving privileges suspended or revoked
  • The named insured or any resident operator has been convicted of certain specified offenses

Important to Know!

A mid-term cancellation for any reason not specifically permitted under Chapter 21 is unlawful. Producers must communicate valid cancellation grounds accurately and must not assist an insurer in issuing a cancellation notice that lacks a lawful basis.

Notice Requirements for Cancellation and Nonrenewal

Michigan law establishes minimum notice periods that must be strictly followed:

  • Mid-term cancellation (other than nonpayment): at least 30 days’ written notice
  • Mid-term cancellation for nonpayment of premium: at least 10 days’ written notice
  • Nonrenewal: at least 20 days’ notice before the policy expiration date

All cancellation and nonrenewal notices must state the specific reason for the action. A notice that fails to include a valid stated reason is defective, and the cancellation may be deemed ineffective.

Sidenote
Exam Tip

Notice counting begins the day after the notice is mailed or delivered, not on the day of mailing. Producers should always document the date and method of delivery to avoid disputes.

Insured’s Right to Explanation

An insured who receives a cancellation or nonrenewal notice has the right to request, in writing, the specific reasons for the action within 30 days of receiving the notice. The insurer must respond in writing within 10 days of receiving the request.

Producers should proactively inform clients of this right and, when possible, assist clients in determining whether a cancellation notice is lawful before the effective date passes.

MAIPF and the Residual Market

The Michigan Automobile Insurance Placement Facility (MAIPF) is Michigan’s assigned risk plan. It ensures that any vehicle owner who is unable to obtain automobile insurance through the voluntary market can obtain the required minimum coverage. Producers who service MAIPF policies must adhere to the same ethical and legal standards as in the voluntary market, and premiums collected for MAIPF policyholders remain fiduciary funds subject to prompt remittance requirements.

Key Definitions

Definitions
Essential insurance
Basic property and casualty coverage — particularly auto and homeowners — that the legislature determined must remain available to Michigan residents.
Rating plan
The schedule of premiums, credits, and surcharges filed by an insurer that determines the premium charged for a specific risk.
Nonrenewal
An insurer’s decision not to renew a policy at expiration, distinct from a mid-term cancellation.
MAIPF
Michigan Automobile Insurance Placement Facility — the assigned risk mechanism ensuring coverage availability for high-risk drivers.
Material misrepresentation (application)
A false or misleading statement made by an applicant that, if material, may justify rescission or mid-term cancellation.
Key points

Overview: The Essential Insurance Act

  • Chapter 21 of Michigan Insurance Code, enacted 1979
  • Ensures availability/affordability of personal auto and homeowners insurance
  • Applies to personal lines only; commercial lines under separate chapters

Rating and Underwriting Standards

  • Insurers must file rating plans, rules, underwriting guidelines with DIFS
  • Rates cannot be excessive, inadequate, or unfairly discriminatory
  • New rating/underwriting factors must be actuarially justified to the Director

Cancellation of Personal Lines Policies

  • First 55 days = underwriting period (broader cancellation rights)
  • After 55 days, cancellation limited to specific grounds:
    • Nonpayment of premium
    • Material misrepresentation on application
    • Violation of policy terms
    • Suspended/revoked driving privileges (insured or resident operator)
    • Conviction of specified offenses
  • Cancellation outside these grounds is unlawful; producers must not assist improper cancellations

Notice Requirements for Cancellation and Nonrenewal

  • Mid-term cancellation (non-nonpayment): 30 days’ written notice
  • Mid-term cancellation (nonpayment): 10 days’ written notice
  • Nonrenewal: 20 days’ notice before expiration
  • Notices must state specific reason; missing reason = defective notice
  • Notice period begins day after mailing/delivery, not day of mailing

Insured’s Right to Explanation

  • Insured may request specific reasons in writing within 30 days of notice
  • Insurer must respond in writing within 10 days of request
  • Producers should inform clients of this right and assist in verifying lawfulness

MAIPF and the Residual Market

  • MAIPF = Michigan’s assigned risk plan for auto insurance
  • Guarantees minimum coverage access for those denied voluntary market insurance
  • Producers must follow same ethical/legal standards as voluntary market
  • MAIPF premiums are fiduciary funds requiring prompt remittance

Key Definitions

  • Essential insurance: basic auto/homeowners coverage required to remain available
  • Rating plan: filed schedule of premiums, credits, surcharges
  • Nonrenewal: insurer declines to renew at expiration (distinct from cancellation)
  • MAIPF: Michigan Automobile Insurance Placement Facility (assigned risk mechanism)
  • Material misrepresentation: false/misleading application statement justifying rescission or cancellation

More from Michigan Insurance Ethics & Law

  • Producer Licensing & Conduct
  • Unfair Trade Practices & Fraud
  • No-Fault Auto Insurance
  • Insurance Fraud