Traffic law and enforcement
SATC rules of the road, moving and non-moving violations, licensing, registration, equipment and speed; citation versus custodial arrest; and the Fourth Amendment limits on stops, vehicle searches and checkpoints.
Required for Class A Class B Class F
The exam draws 30 questions from a bank of 56. You have 45 minutes, and you need 80% to pass. Questions apply the law to situations. To prepare, read this guide alongside the cited sections of the San Andreas codes, the 2026 Law Enforcement Reform Package and the federal authorities below. The U.S. Constitution binds every San Andreas officer. Supreme Court decisions are binding; federal circuit decisions are accepted authority, and where circuits differ the academy teaches the rule that protects rights more.
The San Andreas Transportation Code (SATC) grades traffic conduct, and the grade decides what an officer may do. A Traffic Infraction carries no confinement, is enforced by citation, and is a strict-liability offense under SAPC §6.05: the State proves only the conduct, so a driver who honestly did not notice her speed is still guilty. A Regulation provision is a civil matter enforced by administrative penalty; under SAPC §1.09 it does not create a criminal record unless a separate criminal charge is filed. Misdemeanors and felonies require whatever culpable mental state their definitions state, such as "knowingly" or "with intent to deceive". Moving violations are committed by the way a vehicle is driven: speed, lanes, signals, right-of-way, signs and signals. Non-moving violations concern status, documents, equipment and parking, such as an expired registration, illegal tint, a defective lamp or a fire lane. The difference matters to the licence. The point system (SAAC §20.04) assesses 2 points for moving violations, 3 for violations resulting in a crash, and 4 to 6 for serious offenses such as reckless driving, racing, intoxicated operation and evading; 12 points within 12 months triggers administrative suspension. Suspension is an administrative consequence separate from any criminal penalty (SAAC §20.01), and repeated serious offenses can lead to habitual-violator designation with mandatory revocation (§20.02, §20.03).
A stop or citation is only as good as the violation the officer can describe element by element. Drivers must obey lawfully placed and applicable signs, signals and markings; §544.01 is the general offense, used when no more specific section covers the device. Drivers must come to a complete stop at a clearly marked stop sign before entering the intersection (§545.07) and stop for a red signal (§547L.01). A signal is required when turning, changing lanes or slowing to a stop in the presence of other traffic (§545.12), so the report must say what traffic was there. Drivers must stay entirely within a single lane and move only when it is safe (§548.01), and must not follow more closely than is reasonable and prudent for the speed of both vehicles and the conditions (§545.14). On roads with two or more lanes in one direction, drivers keep right except when overtaking, preparing for a left turn, or when the right lane is obstructed; the offense is failing to move right after passing, not a brief use of the left lane (§545.34). Drivers yield to a pedestrian in a crosswalk on their half of the roadway (§552.04) and stop for a school bus showing its stop arm and flashing red lights when approaching from either direction (§545.09).
Several duties protect people working on the road. On the approach of an emergency vehicle using audible or visual signals, drivers must yield and, where safe, move to the right edge and stop (§546.04). Approaching a stationary emergency vehicle, tow truck or highway-maintenance vehicle displaying warning lights, a driver must vacate the nearest lane when possible or slow to a safe and reasonable speed; failure is a Class C Misdemeanor, raised to Class B when it causes bodily injury (§545.49). Reading, writing or sending an electronic message while driving is §545.16. When a driver commits three or more of the listed moving violations in one incident or sequence (exceeding the speed limit, following too closely, failing to yield, disobeying a traffic control device, an unsafe lane change, improper passing or failing to signal), that pattern is Aggressive Driving (§49V.23), a Class B Misdemeanor. Each underlying violation is still cited, Aggressive Driving is charged in addition, and the officer must document each of the specific violations. Driving in willful or wanton disregard for safety is Reckless Driving (§49V.16).
Speed offenses are tiered by how far the driver exceeded the posted limit: 1 to 10 mph over (§545.01), 11 to 20 (§545.02), 21 to 30 (§545.03) and 31 to 40 (§545.04) are infractions; more than 40 mph over is §545.05, a Class B Misdemeanor with discretionary custodial arrest. Driving 100 mph or more on a public road is a separate Class B offense whatever the posted limit (§49V.25), with a 30-day administrative suspension and impound; the code notes that such speeds should be measured with LIDAR or precision radar and that road, traffic and weather conditions should be documented. Speeding in a school zone (§545.06) requires that the school zone signal is active and children are present. Speeding in a work zone (§545.44) requires that construction or maintenance workers are actively present; if they are not, the standard work-zone limit applies but the doubled fine may not. The posted limit is a maximum for ideal conditions: driving faster than is reasonable and prudent for fog, rain, construction or heavy pedestrian traffic is §548.09 even below the limit. Record the method used to establish speed, the location and the conditions, because each tier is an element.
Licensing offenses turn on the status of the licence. A person who has never held a valid licence commits §521.01 (Class B) on a first offense and §521.14 (Class A, mandatory impound) after a prior conviction. A licence that has simply passed its expiration date, and is not suspended, revoked or cancelled, is §521.06, a Class C Misdemeanor with citation and release. Driving during a court-ordered suspension is §521.02 (Class A); during a suspension imposed by the Department of Motor Vehicles under the points system it is §521.15 (Class B); during a revocation it is §521.03 (Class A); and after an administrative cancellation for fraud, error or surrender it is §521.07 (Class B). A licensed driver who fails or refuses to display a valid licence on lawful demand commits the infraction §521.05, even if records show the licence is valid. A driver whose licence does not cover the class of vehicle, such as a motorcycle on a standard licence, commits §521.09; a missing endorsement for towing, hazardous materials or passengers is §521.10; violating a restriction such as corrective lenses, daylight-only or an ignition interlock is §521.11; a learner driving without the required licensed adult is §521.12; and a new resident who keeps driving on an out-of-state licence past the required period commits §521.13.
Registration offenses are separated by status and intent. An expired registration is the infraction §502.01; a vehicle never registered at all is §502.03; a registration administratively suspended, for example for failing to maintain financial responsibility, is §502.04 (Class C). A plate obscured by a frame, cover or dirt so a character cannot be read, or missing from a required position, is §502.02, while a cover, flipper, spray or other device designed to defeat reading by eye, camera or plate reader is §502.11 (Class C). Knowingly displaying a forged or invalid registration sticker is §502.05 (Class A). Displaying plates lawfully issued for a different vehicle with intent to deceive is §502.07 (Class A), and knowingly attaching a plate not issued by a lawful authority for that vehicle, with intent to conceal the vehicle's identity or evade detection, is §502.06, a State Jail Felony with mandatory custodial arrest. Driving without required insurance is an infraction on a first offense (SATC §601.01) and a Class B Misdemeanor after a prior conviction (§601.02). Impound is mandatory for a driver suspended or revoked for an intoxication offense, a second or later no-insurance violation, a DWI arrest with no licensed driver available, operation while declared out of service, and seizure as evidence or contraband (SAAC §10.01); it is discretionary for a vehicle that is abandoned, blocking traffic or a hazard, involved in certain criminal offenses, or used in reckless driving or racing (SAAC §10.02).
Equipment offenses protect occupants and other road users. The driver must wear a seatbelt (§547.01). A child under 8 must ride in a safety seat meeting federal standards unless the child is taller than 4 feet 9 inches; older and taller children use a properly adjusted belt (§547.08). Carrying a person under 18 in the bed of a pickup on a public highway is §548.03, a Class B Misdemeanor. Non-functioning or absent required equipment such as brake lights, headlights or wipers is the infraction §548.02, and the code lets officers issue a warning with a repair order instead of a citation for minor defects, particularly a single burned-out bulb the driver did not know about. A defect that makes the vehicle unsafe for highway use, such as failing brakes, is §548.10, a Class C Misdemeanor with mandatory impound. Installing or operating red or blue lights or a siren on a vehicle that is not an authorized emergency vehicle is §547L.03 (Class B); a full overhead red, blue or red-and-blue light bar is §547L.16 (Class A); and equipping or using a vehicle to resemble or function as an emergency vehicle, with intent to deceive motorists or gain right-of-way, is Impersonating an Authorized Emergency Vehicle (§546.02, Class A). A device that jams police radar or laser is §547L.19; a passive detector that only receives signals is not.
The Fourth Amendment governs every stop. Probable cause that a traffic violation occurred makes a stop reasonable, whatever the officer's real motive; the Court refused to ask whether a reasonable officer would have made the stop (Whren v. United States). A claim of selective enforcement based on race belongs under the Equal Protection Clause of the Fourteenth Amendment, not the Fourth. An officer's reasonable mistake of law can supply reasonable suspicion when the statute is genuinely unclear, but the mistake must be objectively reasonable, and an officer gains nothing from a sloppy study of the laws he enforces (Heien v. North Carolina). Officers may not stop cars at random to check licences and registration without suspicion (Delaware v. Prouse). When a records check shows that the registered owner's licence is revoked, an officer may infer that the owner is driving and stop the car, unless she knows facts that negate the inference, such as a driver who plainly does not match the owner (Kansas v. Glover). The inference justifies a stop, not an arrest: before charging §521.03 she must establish who is driving.
Once a car is stopped, the stop's mission controls its length. Checking the licence, warrants, registration and insurance belongs to the mission, and authority ends when those tasks are or reasonably should be complete (Rodriguez v. United States). Questions on unrelated matters do not make the stop unlawful so long as they do not prolong it beyond the time its mission reasonably requires (Rodriguez), and a dog sniff during the stop that adds no time is not a search (Illinois v. Caballes). The driver may be ordered out (Pennsylvania v. Mimms). Ordinary roadside questioning during a traffic stop is not custodial interrogation, so Miranda warnings are not required until the driver is arrested or his freedom is curtailed to the degree associated with formal arrest (Berkemer v. McCarty).
San Andreas sets arrest authority offense by offense. Most infractions, and some Class C Misdemeanors, are designated "Citation and release (custodial arrest only on aggravating circumstance)": citation is the default, and custody requires a specific aggravating circumstance that the officer can articulate and document, because the entry itself lists none. Other infractions and many Class C Misdemeanors, such as an expired licence (§521.06), a licence-class violation (§521.09) or a suspended registration (§502.04), say simply "Citation and release", with no aggravating-circumstance exception stated. Regulation provisions that carry an arrest designation say "Civil citation; no custodial arrest". Other offenses carry "Discretionary custodial arrest" or "Mandatory custodial arrest". The Fourth Amendment is less strict: a custodial arrest for a fine-only seatbelt offense supported by probable cause does not violate it (Atwater v. City of Lago Vista), and an arrest on probable cause remains constitutionally reasonable even if state law called for a citation, so a search incident to it is not suppressed on Fourth Amendment grounds (Virginia v. Moore). That does not make the arrest proper under San Andreas law, and officers must follow the code's arrest designation. A lawful custodial arrest allows a full search of the arrestee's person (United States v. Robinson). A citation is a charging record filed with the court, so it must state facts supporting every element, such as the other traffic present for a signal violation.
Arresting a driver does not automatically allow a search of the car. After the arrestee is secured and cannot reach the passenger compartment, a search incident to arrest is allowed only if it is reasonable to believe evidence of the offense of arrest might be in the vehicle (Arizona v. Gant); a suspended-licence arrest leaves nothing of that kind to find. With probable cause that the car holds contraband or evidence, officers may search it without a warrant (Carroll v. United States), including any container that could hold the object of the search (California v. Acevedo) and passengers' belongings capable of holding it (Wyoming v. Houghton). When a car is lawfully impounded, an inventory protects the owner's property, the agency and officers (South Dakota v. Opperman). Inventories must follow standardized criteria; officers may exercise discretion within those criteria (Colorado v. Bertine), but without a policy governing closed containers, opening a locked suitcase is an unlawful search and its contents are suppressed (Florida v. Wells).
Checkpoints are an exception to individualized suspicion, and their purpose decides their legality. Brief stops of every car at a sobriety checkpoint, run under a neutral plan, are reasonable because of the State's interest in preventing drunk driving and the minor intrusion on motorists (Michigan Department of State Police v. Sitz). A checkpoint whose primary purpose is general crime control, such as finding narcotics, violates the Fourth Amendment even if each stop is brief, and adding a licence or sobriety check does not rescue it (City of Indianapolis v. Edmond). A brief information-seeking checkpoint asking motorists for help with a recent crime can be reasonable (Illinois v. Lidster). Contrast the roving, discretionary spot check forbidden by Delaware v. Prouse. A roadblock is itself a seizure (Brower v. County of Inyo), so its location, warning and safety must be reasonable, and anything beyond the brief checkpoint question needs ordinary suspicion or probable cause.
Constitution and case law
The federal authorities this module's questions rely on, and the rule the academy takes from each.
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