POST certification is the state-issued license that authorizes a person to work as a sworn law enforcement officer in the United States. POST stands for Peace Officer Standards and Training, and every state plus the District of Columbia runs a POST commission or equivalent agency that sets the minimum qualifications, approves training academies, and can revoke an officer’s right to serve. The name differs in some states — Oklahoma uses CLEET, Texas uses TCOLE — but the function is the same everywhere: deciding who is allowed to carry a badge.
Who Issues POST Certification
A POST commission is a state-level regulatory body. It licenses individual peace officers, certifies the academies that train them, approves instructors, and disciplines officers who fail to meet professional standards. The closest comparisons are a state bar for attorneys or a medical board for physicians.
The commission sets a floor, not a ceiling. Individual departments can impose stricter hiring requirements, but no agency within a state can swear in someone who has not cleared that state’s POST threshold. Commissions also audit academy curricula, track continuing education compliance, and investigate complaints that could cost an officer the credential. Some additionally fund training, publish model policies, and collect data on use-of-force incidents.
Eligibility Before the Academy
Candidates have to clear a set of baseline requirements before an academy will accept them. The specifics vary by state and hiring agency, but a core set is nearly universal.
Age, Citizenship, and Education
U.S. citizenship is almost always required. The minimum age for sworn officers is typically 21, though some states allow 18 or 19, particularly for correctional or campus police positions. A high school diploma or GED is the standard educational floor, and a growing number of departments prefer or require some college.
Criminal History
A felony conviction is an automatic disqualifier everywhere. Certain misdemeanors end a law enforcement career just as cleanly. A misdemeanor conviction for domestic violence is the clearest example, because federal law prohibits anyone with that conviction from possessing a firearm or ammunition, which makes the job physically impossible to perform.1Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts Other commonly disqualifying misdemeanors include theft, fraud, and drug offenses, with the exact list set by each state.
Fitness, Medical, and Psychological Screening
Candidates take a timed physical fitness test that typically includes a 1.5-mile run, push-ups, sit-ups or a flexibility measure, and sometimes an agility course.2Federal Law Enforcement Training Centers. Physical Efficiency Battery (PEB) Failing any single component usually means failing the whole test.
A medical examination follows, with specific thresholds for vision, color vision, hearing, and balance. Corrective lenses and hearing aids are generally allowed as long as the corrected standard is met. A psychological evaluation — written testing plus a clinical interview with a licensed psychologist — screens for traits and conditions incompatible with the stress and authority of police work. Drug testing is standard, and many agencies add a polygraph covering past drug use, criminal activity, and application honesty.
Academy Training and the Licensing Exam
Once a candidate is accepted into a POST-approved academy, training is intensive. State and local law enforcement academies require an average of about 806 hours of basic training, according to the Bureau of Justice Statistics.3Bureau of Justice Statistics. State and Local Law Enforcement Training Academies and Recruits, 2022 That works out to roughly five to six months of full-time instruction, with programs running from about 12 weeks on the short end to more than 30 weeks on the long end.
Classroom instruction covers criminal law, constitutional law (especially Fourth and Fifth Amendment limits on searches and interrogations), report writing, and patrol procedures. Hands-on training covers firearms proficiency and use-of-force decision-making, defensive tactics, emergency vehicle operations, first aid and CPR, and crisis intervention and de-escalation.
Graduating from the academy does not, by itself, confer POST certification in most states. Recruits also have to pass a comprehensive written exam, sometimes called the POST exam or the state licensing exam, that is administered or approved by the state commission. Failing it blocks you from being sworn in regardless of academy performance.
Field Training Before Solo Patrol
Academy graduation is the halfway point. Nearly every department puts newly certified officers through a structured field training program before letting them work alone. During that program, a rookie rides with an experienced field training officer (FTO) who evaluates performance on real calls and provides daily written feedback.
Field training commonly runs 10 to 15 weeks and uses a phased structure. Early phases focus on basic patrol skills: traffic stops, calls for service, timely report writing. Complexity ramps up through later phases, with a final “shadow” period in which the FTO observes without intervening unless safety demands it. Officers who cannot meet the standards can be extended, recycled to an earlier phase, or terminated. A meaningful number of recruits wash out at this stage.
Keeping Your Certification Active
POST certification is not a one-time credential. States require ongoing continuing education, typically somewhere between 20 and 40 hours every one to two years. Common mandatory topics include legal updates, firearms requalification, use-of-force policy, de-escalation, and crisis intervention. Some states add requirements covering active-shooter response or implicit bias training.
Firearms requalification carries the most immediate consequences. Officers have to demonstrate proficiency with every weapon they are authorized to carry, usually at least once a year. Failing to qualify means you cannot carry that weapon on duty, which for a patrol officer effectively means you cannot work until you pass.
Falling behind on continuing education does not always trigger immediate decertification, but it does push the certification into inactive status. An officer with an inactive certification cannot exercise law enforcement authority — no arrests, no badge — until the missing hours and any state-imposed reinstatement steps are completed.
Losing POST Certification
Decertification strips an officer of the legal authority to serve in law enforcement. The professional parallel is disbarment for a lawyer. Grounds fall into three broad categories.
- Criminal conviction. A felony conviction triggers automatic decertification in most states. Certain misdemeanor convictions, particularly domestic violence, have the same effect because of the federal firearms prohibition.
- Serious misconduct. Dishonesty such as falsifying reports or lying under oath, excessive force, sexual misconduct, and demonstrated bias can end a certification without any criminal conviction. State laws in this area have expanded in recent years.
- Failure to maintain standards. Prolonged failure to complete continuing education, refusal to cooperate with an investigation, or inability to meet medical or fitness standards can also cost an officer the credential.
The National Decertification Index
Decertification is tracked across state lines through the National Decertification Index (NDI), a database maintained by the International Association of Directors of Law Enforcement Standards and Training (IADLEST).4IADLEST. National Decertification Index – Frequently Asked Questions Each state POST agency enters records when it decertifies, suspends, or takes other regulatory action against an officer. The NDI works as a pointer, flagging that an action was taken and directing the inquiring agency to the state that entered the record for the details.
Primary users are law enforcement agencies and background investigators running pre-employment checks. The general public cannot access it. The NDI is free for authorized agencies and was developed with Department of Justice funding. Its usefulness depends on states actually submitting records, and reporting has historically been inconsistent.
Moving States or Returning After a Break
POST certification does not automatically follow an officer across state lines. Most states offer some form of reciprocity or lateral-entry process, but the requirements vary. A common framework asks the transferring officer to hold a current, non-revoked certification, show at least two years of full-time law enforcement experience, pass a state-specific written exam on local laws, and complete a physical fitness test. Processing and exam fees generally run from $100 to several hundred dollars.
The restrictions are consistent. No state will grant reciprocity to an officer whose certification has been revoked, suspended, or is under disciplinary review elsewhere. Most states also impose a gap limit: once you have been out of law enforcement for more than three to five years, reciprocity usually is not available and a full academy or condensed requalification course is required.
The same clock runs on officers who leave voluntarily. Most states allow a streamlined reinstatement if the break is under three years, typically with updated continuing education and possibly a refresher course. Once the gap exceeds three years, requirements get heavier, and after five or six years away some states require repeating the entire basic academy. The reason for leaving also matters: an officer who departed in good standing faces a straightforward administrative process, while one whose certification lapsed during a disciplinary issue or unresolved investigation may find the door closed. Anyone in either situation should contact the state POST commission before making commitments, because the cost and timeline difference between a short refresher and a full academy is substantial.