Federal Law Enforcement Hiring Tests: Find Your Agency Exam

There is no single Federal Law Enforcement Exam used across every U.S. federal law-enforcement job.

Federal police officers, criminal investigators, border-enforcement personnel, correctional officers, air marshals, park rangers, inspectors, protective-service officers, and agency-specific special agents can follow very different hiring and assessment paths.

The correct starting point is therefore not a generic practice test. It is the exact agency, occupational series, vacancy announcement, and assessment invitation for the position you applied to.

This page is a routing guide. It does not reproduce live federal test questions, confidential assessment content, agency scoring keys, or a universal federal law-enforcement blueprint. Official agency instructions control your application.

Start with your exact federal role

Federal law-enforcement work spans multiple occupational series and agencies. OPM’s classification system separates uniformed police work, criminal investigation, general enforcement and compliance, corrections, border occupations, and other specialized work rather than treating them as one occupation.

Common pathways include:

• Police Series 0083 for many federal police-officer positions;
• Criminal Investigation Series 1811 for many special-agent and criminal-investigator positions;
• General Inspection, Investigation, Enforcement, and Compliance Series 1801 for certain enforcement and compliance roles;
• Correctional Officer Series 0007 for federal correctional-officer positions;
• Park Ranger Series 0025 for federal park-ranger positions;
• United States Marshal Series 0082 for U.S. Marshals positions;
• agency-specific CBP, Border Patrol, TSA/Federal Air Marshal, Secret Service, ATF, HSI, Postal Inspector, and other pathways.

A vacancy title alone is not enough. Read the USAJOBS announcement and note the occupational series and any named assessment.

How to choose the correct preparation page

Use the role named in your official application rather than a broad “law enforcement” label.

If you applied for	Start with
Federal police officer / Series 0083	Federal Police Officer guide
ATF Special Agent	ATF Special Agent Exam
ICE HSI Special Agent	ICE HSI Special Agent assessment
Secret Service Special Agent	Secret Service SAEE
Secret Service Uniformed Division	Secret Service UDEE
CBP Officer	CBP Officer Entrance Exam
Border Patrol Agent	Border Patrol Entrance Exam
Federal Air Marshal	Federal Air Marshal assessment guide
U.S. Marshals	U.S. Marshals assessment guide
U.S. Postal Inspector	U.S. Postal Inspector guide
Federal correctional officer	Federal Correctional Officer guide
Federal park ranger	Federal Park Ranger guide
DHS role where the invitation names a department-level assessment	DHS Assessment guide

If your invitation names USA Hire rather than an agency-specific test, use the USA Hire Assessment guide and then match the occupational modules shown in your invitation.

Federal police is not the same as federal special-agent hiring

A federal police-officer role and an 1811 criminal-investigator role are not interchangeable.

OPM maintains Police Series 0083 as its own occupation. The qualification standard covers police work focused on maintaining order and protecting life and property and includes role-specific experience, medical, and agency fitness requirements.

OPM separately maintains Criminal Investigation Series 1811 for criminal-investigator positions. Those jobs can include arduous physical duties, firearms responsibilities, investigations, and medical standards. Individual agencies then add their own selection systems, assessments, interviews, fitness requirements, background processes, and training.

That distinction is why a generic federal police practice pack should not be presented as preparation for every special-agent vacancy.

Where USA Hire fits in 2026

OPM expanded USA Hire Standard Assessment coverage in 2026, including PATCO assessment categories for many occupational series.

Current OPM availability includes, among many others:

• Correctional Officer 0007;
• Park Ranger 0025;
• Fire Protection and Prevention 0081;
• U.S. Marshal 0082;
• Police 0083;
• Security Guard 0085;
• numerous administrative, technical, professional, and enforcement occupations.

This availability does not mean that every vacancy in a listed series automatically uses the same USA Hire assessment. Agencies decide what assessment strategy applies to an eligible vacancy, and the live announcement and invitation remain controlling.

Agency-specific exams take priority over generic practice

Several federal law-enforcement agencies publish named assessment processes or official candidate guides. When they do, those materials should be your primary source.

Examples on this site include:

• Secret Service SAEE and UDEE;
• CBP Officer Entrance Exam;
• Border Patrol Entrance Exam;
• ATF Special Agent assessment;
• ICE HSI assessment pathway;
• U.S. Marshals assessment information;
• Federal Air Marshal assessment information.

Do not infer one agency’s format, timing, passing rule, or retest policy from another agency’s exam.

Important FBI Special Agent restriction

FBI Special Agent preparation requires an additional caution.

FBIJobs currently provides its own Testing Overview and states that it does not endorse test-preparation materials beyond FBIJobs.gov. For that reason, this hub does not route candidates to third-party FBI Special Agent test preparation or promote the site’s older FBI Phase I / Phase II commercial-style pages as indexation-ready resources.

If you are in the FBI Special Agent Selection System, use the current FBIJobs Special Agent application and testing materials and follow your Applicant Coordinator’s instructions.

What broad law-enforcement practice can still help with

Once you know the exact assessment named in your vacancy, broad third-party practice can sometimes help with transferable skills such as:

• reading comprehension;
• written communication;
• logical reasoning;
• numerical reasoning;
• situational judgment;
• attention to detail;
• memory and observation;
• following written rules;
• professional judgment.

Those skills are not evidence that your agency uses a particular commercial test blueprint. Use them only when they match the competencies or assessment type identified in your official materials.

What not to assume

Do not assume that:

• every federal law-enforcement applicant takes USA Hire;
• every federal police officer takes the same written exam;
• all 1811 agencies share one entrance test;
• local police exam formats apply to federal vacancies;
• one agency’s score, retest rule, or fitness standard applies to another;
• a commercial prep provider is an official federal source;
• an occupational series appearing in USA Hire’s availability table guarantees that your vacancy uses USA Hire.

A practical preparation workflow

1. Open the live job announcement.
2. Record the agency, occupational series, grade, and position title.
3. Read the assessment and evaluation sections of the announcement.
4. Check the invitation email for the exact assessment name and deadline.
5. Use the official agency or OPM candidate guide first.
6. Open the matching role-specific guide on this site only after the assessment is identified.
7. Use optional third-party drills only for skill areas that genuinely match your invitation.

Official-source hierarchy

For federal law-enforcement hiring, use sources in this order:

1. the live USAJOBS or agency vacancy announcement;
2. your official candidate invitation and applicant portal;
3. the hiring agency’s current careers and assessment pages;
4. OPM qualification standards and USA Hire applicant/agency resources when applicable;
5. third-party preparation only as optional practice after the official assessment is clear.

FAQ