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Bill

HB 6100

Education: calendar; restrictions on school start date; eliminate. Amends sec. 1284a of 1976 PA 451 (MCL 380.1284a) & repeals sec. 1284b of 1976 PA 451 (MCL 380.1284b) & sec. 160 of 1979 PA 94 (MCL 388.1760).

2025-2026 Regular Session Introduced by Kelly Breen and 7 co-sponsors

Michigan would require intermediate districts and their districts to adopt and publish a single common school calendar, with waivers possible for certain nonstandard schedules.

bill electronically reproduced 06/17/2026
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Bill Summary · HB 6100

Overview

House Bill 6100 (Michigan, 2025-2026) proposes changes to the state’s school calendar requirements by amending the revised school code and repealing related provisions. The measure aims to modify how intermediate school districts (ISDs) and local districts coordinate and publish a common calendar, with implications for district calendars, waivers, and existing calendar-flexibility provisions. The bill is introduced June 17, 2026, and referred to the Education and Workforce Committee.

Primary purpose and intent

  • Create a framework for ISDs and their constituent districts to adopt and enforce a single, common school calendar across all districts within an ISD.
  • Require ISDs to post the common calendar on their websites.
  • Establish criteria and processes for waivers from the common calendar in specific situations (year-round, trimester schedules) and for certain other exceptions.
  • Repeal existing statutory elements tied to the current calendar structure (sections 1284b and 160 of related acts).

Key provisions and changes

  • Common calendar adoption

    • ISDs, in cooperation with their constituent districts, must adopt a common school calendar applicable to all districts within the ISD and its programs.
    • The ISD must post the common calendar on its website.
    • The calendar must conform to applicable requirements in sections 1284 and 1284b.
    • The calendar must identify school-year dates for winter and spring breaks for at least the next five school years (specific dates) or describe them in a way that allows easy determination for future years.
  • Calendar compliance for districts

    • Beginning with the 2008-2009 school year, each constituent district and the ISD board must ensure its local calendar complies with the adopted common calendar.
    • An optional extension: districts can identify professional development days on the common calendar.
  • Waivers and exceptions

    • Year-round or international baccalaureate (IB) programs with substantial instructional hours (1,160+ hours) may be exempt from the calendar requirement if they had such calendars as of Oct. 1, 2007; new year-round or IB programs may apply for a waiver if justified.
    • Waivers for trimester schedules are allowed if there is a bona fide educational justification and criteria set by the state
    • Additional general waivers can be granted by the superintendent of public instruction (SPI) with justification.
    • The SPI will establish standards for determining what constitutes a bona fide year-round or trimester schedule.
  • Specific exclusions and exceptions

    • The requirement does not apply to a public school that operates grades 6-12 at a single site, aligns its high school curriculum with AP courses as a capstone, and ends the second semester with the AP exam period.
  • Definitions

    • Clarifies terms: “board,” “constituent district,” and “school district.”
  • Repeals

    • Repeals section 1284b of the Revised School Code (MCL 380.1284b) and section 160 of the State School Aid Act (MCL 388.1760).
  • Effective date

    • The act takes effect 90 days after enactment.

Who is affected

  • Intermediate school districts and their constituent school districts within Michigan.
  • Public schools operating under ISD governance, including districts with shared calendars and any districts seeking waivers for nonstandard calendars (year-round, trimester, or other approved variations).
  • Schools currently on year-round or IB calendars (potentially exempt from standard calendar requirements) and those seeking new waivers.
  • The Michigan Department of Education (through SPI) responsible for approving waivers and establishing standards.

Procedural and timeline aspects

  • Effective date: 90 days after enactment.
  • Calendar adoption and posting: ISDs must adopt and post a common calendar, with ongoing compliance by constituent districts beginning 2008-2009 (per the text’s transition reference).
  • Waiver process: Written applications to SPI, with justification; SPI determines bona fide educational reasons and grants waivers if appropriate.
  • Transitional provisions: Specific grandfathering for districts with pre-existing year-round or IB calendars as of Oct. 1, 2007.

Potential impact and considerations

  • Uniformity: Could lead to more uniform start/end dates and breaks across districts within an ISD, reducing district-level scheduling variation.
  • Flexibility: Maintains avenues for waivers to preserve year-round or trimester approaches when justified, potentially preserving innovative or specialized programs.
  • Administrative: Requires ISDs to develop and publish a centralized calendar, and for districts to align operations accordingly.
  • Fiscal and calendar planning implications: May affect transportation, staffing, professional development planning, and parent/community scheduling.
  • Repeal of existing sections: Removes some prior calendar provisions and consolidates them under the new framework, with SPI oversight for exceptions.

Compiled from official sources — confirm details with the bill’s official record.

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