Practice Test Geeks(SFST) Standardized Field Sobriety Testing Certified Practice Test

SFST Study Guide 2026

Everything you need to pass the SFST exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

SFST exam key facts

  • The NHTSA/IACP SFST training written examination requires a passing grade of 80%. Source
  • The SFST standards require a retest to take place 15–30 days after completion of classroom training. Source
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📋 SFST Exam Format at a Glance

50
Questions
60 min
Time Limit
80.00%
Passing Score
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📚 SFST Topics to Study (39)

Alcohol Influence and Physiological Effects · 7 cardsAlcohol Influence and Physiological Effects · 7 cardsAlcohol Influence and Physiological Effects · 7 cardsCourt Testimony · 7 cardsCourt Testimony · 7 cardsDocumentation · 7 cardsDocumentation · 7 cardsEvaluation Factors · 7 cardsEvaluation Factors · 7 cardsHGN Test · 7 cardsHGN Test · 7 cardsLegal and Ethical Considerations · 7 cardsLegal and Ethical Considerations · 7 cardsLegal Standards · 7 cardsLegal Standards · 7 cardsObservation Skills · 7 cardsObservation Skills · 7 cardsOne Leg Stand · 7 cardsOne Leg Stand · 7 cardsRenewal and Professional Development · 7 cardsRenewal and Professional Development · 7 cardsTest Administration · 7 cardsTest Administration · 7 cardsTraining Requirements · 7 cardsTraining Requirements · 7 cardsWalk and Turn · 7 cardsWalk and Turn · 7 cardsCourt Testimony · 6 cardsDocumentation · 6 cardsHGN Test · 6 cards
See all 39 topics as flashcards →

✍️ Sample SFST Questions & Answers

1. During court testimony, a defense attorney asks why the officer did not use a stopwatch during OLS. What is the correct NHTSA-recommended response?
✓ NHTSA recommends using a watch or other timing device to measure the 30-second period

NHTSA recommends that officers use a timing device to accurately measure the 30-second OLS period.

2. Implied consent laws typically require that a driver who refuses a chemical test following a failed SFST faces:
✓ Administrative license suspension

Implied consent laws impose administrative license suspension as a civil penalty for chemical test refusal.

3. The primary route of alcohol elimination from the body is through:
✓ Metabolism by the liver

Approximately 90–95% of consumed alcohol is eliminated through hepatic metabolism (liver), while small amounts are excreted via breath, urine, and sweat.

4. What is the process of elimination in multiple-choice testing?
✓ Ruling out obviously incorrect answers to improve odds

Process of elimination involves identifying and removing clearly wrong answers, increasing the probability of selecting the correct answer from remaining options.

5. A suspect informs the officer they have a glass eye. How should the officer proceed with the HGN test?
✓ Administer HGN on the functioning eye only and note the condition

NHTSA guidelines allow the HGN to be administered using the functioning eye only, and the officer should document the condition.

6. When using the SFST battery to detect drug impairment (rather than alcohol), which test in the standard battery is considered LEAST reliable as a standalone indicator?
✓ HGN, because some drug categories do not produce nystagmus

HGN is most specifically linked to alcohol and certain drug categories; stimulants or cannabis alone may not reliably produce nystagmus, making it the least universal drug indicator.

🎯 Free SFST Practice Tests

Legal and Ethical Considerations · 7 questionsAlcohol Influence and Physiological Effects · 7 questionsOne Leg Stand · 7 questionsAlcohol Influence and Physiological Effects · 7 questionsAlcohol Influence and Physiological Effects · 7 questionsOne Leg Stand · 7 questionsLegal and Ethical Considerations · 7 questionsTest Administration · 7 questionsTest Administration · 7 questionsRenewal and Professional Development · 7 questions

📖 SFST Guides & Articles

Your SFST Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation
🃏 SFST Flashcards (257)🏆 SFST Exam Simulation

What Practice Test Geeks adds beyond an AI chat for SFST

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

  • A timed, full-length SFST mock exam — 50 questions in 60 minutes with a 80% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
  • A fixed SFST question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
  • Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
  • A printable SFST cheat sheet you can print or save as a PDF.
  • SFST flashcards built from the same question bank.
  • Free SFST practice tests with the correct answer shown after each question.
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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. nhtsa.gov — Retake policy, test delivery, passing score · verified Oct 2026
  2. theiacp.org — Renewal · verified Oct 2026