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CDL — Bằng Lái Thương Mại in Illinois
Illinois Secretary of State
📋 Thông tin kỳ thi
Thông tin tổ chức thi thực tế tại Illinois — từ nguồn chính thức
- Câu luyện tập (trang này)
- 1281
- Cơ quan tổ chức thi
- Illinois Secretary of State
- Ngôn ngữ bài thi viết thực tế
- English · Spanish
- Để đậu
- 80% (≥35 questions per test) — federal min
- Lệ phí
- No separate written-test fee; CLP add $50, CDL A/B/C $60
- Chính sách thi lại
- Retest next business day; fail same test 3× → wait 30 days (to confirm exact wording)
- Languages note
- Spanish added July 2024; no interpreter allowed for the CDL knowledge test. The 130+ language interpreter program is non-commercial only.
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🚌 School Bus (S) — additional Illinois requirements
Beyond the federal CDL School Bus knowledge + skills test, this state adds its own school-bus driver credential. (Practice here covers the knowledge test only.)
- Administering agency
- Illinois Secretary of State, with the Illinois State Board of Education (ISBE)
- State credential
- Illinois requires a separate School Bus Driver Permit from the Secretary of State (on top of a license with the (S) endorsement), conditioned on an ISBE training course.
- Renewal / in-service
- The permit is valid one year; renewal requires an annual ISBE refresher classroom course and an annual physical (valid 90 days) including drug testing.
- Other prerequisites
- Be at least 21; have held a valid license for the three years immediately prior (not revoked/suspended/cancelled/disqualified) with an (S) endorsement; complete an ISBE classroom-training course; and pass an annual physical (valid 90 days) including drug testing.
Languages, fees and rules change — confirm with the official source linked for each state. 待核 / 'To confirm' = not yet confirmed from an official source (shown honestly, never guessed). The 2025 federal English-Language-Proficiency action is roadside out-of-service enforcement, not a state test-language mandate; states set their own written-test languages (Texas and Florida moved to English-only in 2026).