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Important Dates & Deadlines 2025-2026
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Advanced Opportunities
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Advanced Opportunities State Portal
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TermStudent Application Data Entry WindowVerification WindowDistrict Submission Deadline
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Summer 20263/30/26-6/19/266/22/26-8/21/268/28/26
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Fall 2026/Trimester 13/30/26-10/9/2610/10/26-11/8/2611/20/26
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Spring 2027 Trimester 211/16/26-3/5/273/8/27-5/7/275/21/27 (courses) 5/28/27 (exams)
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Trimester 32/15/27-42/274/5/27-5//275/21/27 (courses) 5/28/27 (exams)
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For complete information, please go to https://www.sde.idaho.gov/student-engagement/advanced-ops/
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Boise State University
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SessionRegistration DeadlineCourse Drop DeadlineFee DeadlineGrades Available
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Summer 2026June 19, 2026July 24, 2026July 24, 2026September 4, 2026
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Fall 2026September 25, 2026October 16, 2026October 23, 2026January 15, 2027
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Spring 2027February 9, 2027March 12, 2027March 19, 2027June 4, 2027
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Year-longSeptember 25, 2026October 16, 2026October 23, 2026June 4, 2027
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College of Southern Idaho
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TermRegistration DeadlineDrop/Refund Deadline
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Fall, Trimester 1, Trimester 1 & 2 ClassesSeptember 30, 2026September 30, 2026
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Trimester 2February 3, 2027February 3, 2027
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Spring, Trimester 2, Trimester 2 & 3 and yearlong classesFebruary 24, 2027February 24, 2007
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3rd Trimester classesApril 9, 2027April 9, 2027
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College of Western Idaho
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High School Dual Credit Deadlines
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TermRegistration OpensRegistration closesDrop without a W and refund deadlineWithdrawal deadline (W grades issued)
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Fall 2026August 17, 2026October 9, 2026November 6, 2026November 27, 2026
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Spring 2027January 4, 2027March 5, 2026April 2,2027April 23, 2027
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Summer 2027
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IDLA
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TermRegistration StartRegistration EndStart DateDrop/Refund Deadline
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Early Fall 2026TBDAugust 21, 2026August 24, 2026September 11, 2026
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Late Fall 2026TBDSeptember 11, 2026September 14, 2026October 2, 2026
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Early Spring 2027TBDJanuary 8, 2027January 11, 2027January 29, 2027
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Late Spring 2027TBDJanuary 22, 2027January 25, 2027February 12, 2027
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ISU
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TermRegistration DeadlineDrop Deadline for no "W"
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Fall 202510/9/2610/9/26
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Spring 20262/12/272/12/27
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NNU
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TermRegistration DeadlineDrop Deadline for no "W"
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Fall 2026October 9, 2026October 1, 2326
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Spring 2027March 5, 2027March 19, 2027
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Year Long fall registrationOctober 9, 2026October 23, 2026
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Year Long Spring registrationMarch 5, 2027March 19, 2027
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University of Idaho
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Semester/Full Year Classes
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TermRegistration DeadlineDrop/Refund DeadlineDrop Deadline- No Refund
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Fall 2026 on campus and onlineSeptember 18, 2026September 25, 2026November 20, 2026
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Spring 2027February 12, 2027February 19, 2027April 23, 2027
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Full YearSeptember 18, 2026October 9, 2026February 5, 2027
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