SFST (Standardized Field Sobriety Testing Certified) Test Guide
Prepare for the SFST certification with free practice tests covering DUI detection, HGN test, walk-and-turn, one-leg stand, and sobriety testing.
The NHTSA SFST curriculum is the gold standard for impaired driving enforcement in the United States. Passing the SFST instructions and proficiency exams certifies you to administer these tests during traffic stops.
SFST Practice Test Questions
Prepare for the SFST - Standardized Field Sobriety Testing Certified exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
SFST Court Testimony
SFST Exam Questions covering Court Testimony. Master SFST Test concepts for certification prep.
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SFST Documentation
Free SFST Practice Test featuring Documentation. Improve your SFST Exam score with mock test prep.
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SFST Evaluation Factors
SFST Mock Exam on Evaluation Factors. SFST Study Guide questions to pass on your first try.
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SFST HGN Test
SFST Test Prep for HGN Test. Practice SFST Quiz questions and boost your score.
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SFST Legal and Ethical Considerations
SFST Questions and Answers on Legal and Ethical Considerations. Free SFST practice for exam readiness.
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SFST Legal Standards
SFST Mock Test covering Legal Standards. Online SFST Test practice with instant feedback.
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SFST Observation Skills
Free SFST Quiz on Observation Skills. SFST Exam prep questions with detailed explanations.
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SFST One Leg Stand
SFST Practice Questions for One Leg Stand. Build confidence for your SFST certification exam.
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SFST Renewal and Professional Development
SFST Test Online for Renewal and Professional Development. Free practice with instant results and feedback.
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SFST Test Administration
SFST Study Material on Test Administration. Prepare effectively with real exam-style questions.
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SFST Training Requirements
Free SFST Test covering Training Requirements. Practice and track your SFST exam readiness.
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SFST Walk and Turn
SFST Exam Questions covering Walk and Turn. Master SFST Test concepts for certification prep.
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Quick review of SFST clues and procedures
👁️How many clues are in HGN?
The HGN SFST test has 6 total clues (3 per eye): Lack of Smooth Pursuit, Max Deviation, and Onset Prior to 45 Degrees.
START SFST PRACTICE TEST🚶What are the WAT Stages?
The Walk and Turn test has two stages: the Instruction Stage (divided attention) and the Walking Stage.
GET SFST EXAM PREP🦵Clues for One Leg Stand?
There are 4 clues: Sways while balancing, Uses arms to balance, Hops, and Puts foot down (PUSH).
REVIEW SFST QUESTIONS📊HGN Accuracy Rate?
According to the San Diego Study, the HGN test is 88% accurate at detecting BAC above 0.08%.
TRY SFST MOCK EXAM🔦Stimulus Distance?
The stimulus should be held approximately 12-15 inches from the subject's nose and slightly above eye level.
ACCESS SFST STUDY GUIDE📜WAT Clues to Fail?
Observing 2 or more clues on the Walk and Turn test indicates a BAC of 0.08% or higher with 79% reliability.
PRACTICE SFST TEST NOWSFST Exam Study Guide
The NHTSA SFST curriculum is broken down into specific modules. Understanding the mechanics of the Horizontal Gaze Nystagmus (HGN), Walk and Turn (WAT), and One Leg Stand (OLS) is critical for passing the SFST written test.
SFST Test Format
The SFST certification process consists of three main testing components. You must master the administration and scoring of the Horizontal Gaze Nystagmus, Walk and Turn, and One Leg Stand tests as defined by the NHTSA SFST manual.
The HGN test checks for involuntary eye jerking. It is the most reliable of the three tests.
- Topics: Smooth Pursuit, Max Deviation, Onset at 45°
- Questions: 6 Clues (3 per eye)
A divided attention test requiring the subject to listen to instructions while maintaining a stance.
- Topics: Instruction Stage, Walking Stage
- Questions: 8 Total Clues
Tests balance and counting ability. The subject must hold one foot up for 30 seconds.
- Topics: Balance, Time Estimation
- Questions: 4 Total Clues
The final written test covers validation studies, administrative procedures, and case law.
- Topics: Manual contents, procedures
- Questions: 20-50 Questions
Instructor-led evaluation where you must demonstrate all three tests without error.
- Topics: Administration, Instructions
- Questions: 3 Full Tests
Testing live subjects who have consumed alcohol in a controlled environment.
- Topics: Real impairment detection
- Questions: 2 Practical Apps
The most critical part of the SFST test is giving the instructions exactly as written in the NHTSA SFST manual. Deviating from the script can invalidate the test results in court.
SFST Score Calculator
Total Scored Questions
150
105 out of 150 correct
70%
Required to Pass: ~70% (Estimated)
SFST Salary Information
$65,000
Median Annual Salary
SFST Registration Process
The path to becoming SFST certified usually begins at a police academy or through a specialized SFST training course offered by your agency. The 24-hour NHTSA curriculum is the standard requirement.
Academy
Course
Exam
Certified
SFST Certification Costs
For most law enforcement officers, the SFST training cost is covered by their agency. However, private security or legal professionals may pay out of pocket for SFST courses.
Almost all sworn officers receive SFST certification for free as part of their employment training. Agencies also typically cover the cost of the SFST refresher course.
SFST Testing Contacts
For official information on NHTSA SFST training and certification, contact these organizations.
NHTSA
National Highway Traffic Safety Admin
IACP Intl Assoc of Chiefs of
Police
SFST Test Day Checklist
Ready to Pass Your SFST Exam?
Join thousands of officers who have used our free SFST practice test questions to master the NHTSA standards and ace their certification.
SFST Renewal Requirements
Refresher Every
2 Years
Course Length
4-8 Hours
Regular SFST refresher training is crucial not just for certification, but for maintaining credibility during cross-examination in court.
SFST Questions and Answers
About the Author
Commercial Pilot & FAA Certification Specialist
Embry-Riddle Aeronautical UniversityCaptain Jennifer Walsh graduated with honors in Aerospace Engineering from Embry-Riddle Aeronautical University and holds FAA Airframe & Powerplant and Airline Transport Pilot certificates. With 11 years of commercial aviation experience and 6 years as a ground school instructor, she guides aviation mechanics and student pilots through FAA written exams and practical tests.