Missouri Revised Statutes
Chapter 304 - Traffic Regulations
Section 304.230 - Enforcement of load laws — commercial vehicle inspectors, powers.

Effective - 28 Aug 2008
304.230. Enforcement of load laws — commercial vehicle inspectors, powers. — 1. It shall be the duty of the sheriff of each county or city to see that the provisions of sections 304.170 to 304.230 are enforced, and any peace officer or police officer of any county or city or any highway patrol officer shall have the power to arrest on sight or upon a warrant any person found violating or having violated the provisions of such sections. Beginning January 1, 2009, only law enforcement officers that have been approved by the Missouri state highway patrol under section 304.232, members of the Missouri state highway patrol, commercial vehicle enforcement officers, and commercial vehicle inspectors appointed under subsection 4 of this section shall have the authority to conduct random roadside examinations or inspections to determine compliance with sections 304.170 to 304.230, and only such officers shall have the authority, with or without probable cause to believe that the size or weight is in excess of that permitted by sections 304.170 to 304.230, to require the driver, operator, owner, lessee, or bailee, to stop, drive, or otherwise move to a location to determine compliance with sections 304.170 to 304.230. Notwithstanding the provisions of this subsection, a law enforcement officer not certified under section 304.232 may stop a vehicle that has a visible external safety defect relating to the enforcement of the provisions of sections 304.170 to 304.230 that could cause immediate harm to the traveling public. Nothing in this section shall be construed as preventing a law enforcement officer not certified under section 304.232 from stopping and detaining a commercial motor vehicle when such officer has probable cause to believe that the commercial motor vehicle is being used to conduct illegal or criminal activities unrelated to violations of sections 304.170 to 304.230. In the course of a stop, the law enforcement officer shall identify to the driver the defect that caused the stop. If the vehicle passes a comprehensive roadside inspection, the law enforcement officer, state highway patrolman, or other authorized person shall issue such vehicle a commercial vehicle safety alliance inspection decal to be affixed to the vehicle in a manner prescribed by the commercial vehicle safety alliance. The superintendent of the Missouri state highway patrol shall promulgate rules and regulations relating to the implementation of the provisions of this section. Any rule or portion of a rule, as that term is defined in section 536.010, that is created under the authority delegated in this section shall become effective only if it complies with and is subject to all of the provisions of chapter 536 and, if applicable, section 536.028. This section and chapter 536 are nonseverable and if any of the powers vested with the general assembly pursuant to chapter 536 to review, to delay the effective date, or to disapprove and annul a rule are subsequently held unconstitutional, then the grant of rulemaking authority and any rule proposed or adopted after August 28, 2008, shall be invalid and void.
2. Any peace officer approved under section 304.232 or any highway patrol officer is hereby given the power to stop any such conveyance or vehicle as above described upon the public highway for the purpose of determining whether such vehicle is loaded in excess of the provisions of sections 304.170 to 304.230, and if he or she finds such vehicle loaded in violation of the provisions thereof he or she shall have a right at that time and place to cause the excess load to be removed from such vehicle; and provided further, that any regularly employed maintenance man of the department of transportation shall have the right and authority in any part of this state to stop any such conveyance or vehicle upon the public highway for the purpose of determining whether such vehicle is loaded in excess of the provisions of sections 304.170 to 304.230, and if he or she finds such vehicle loaded in violation of the provisions thereof, he or she shall have the right at that time and place to cause the excess load to be removed from such vehicle. When only an axle or a tandem axle group of a vehicle is overloaded, the operator shall be permitted to shift the load, if this will not overload some other axle or axles, without being charged with a violation; provided, however, the privilege of shifting the weight without being charged with a violation shall not extend to or include vehicles while traveling on the federal interstate system of highways. When only an axle or tandem axle group of the vehicle traveling on the federal interstate system of highways is overloaded and a court authorized to enforce the provisions of sections 304.170 to 304.230 finds that the overloading was due to the inadvertent shifting of the load changing axle weights in transit through no fault of the operator of the vehicle and that the load thereafter had been shifted so that no axle had been overloaded, then the court may find that no violation has been committed. The operator of any vehicle shall be permitted to back up and reweigh, or to turn around and weigh from the opposite direction. Any operator whose vehicle is weighed and found to be within five percent of any legal limit may request and receive a weight ticket, memorandum or statement showing the weight or weights on each axle or any combinations of axles. Once a vehicle is found to be within the limits of section 304.180 after having been weighed on any state scale and there is no evidence that any cargo or fuel has been added, no violation shall occur, but a presumption shall exist that cargo or fuel has been added if upon reweighing on another state scale the total gross weight exceeds the applicable limits of section 304.180 or 304.190. The highways and transportation commission of this state may deputize and appoint any number of their regularly employed maintenance men to enforce the provisions of such sections, and the maintenance men delegated and appointed in this section shall report to the proper officers any violations of sections 304.170 to 304.230 for prosecution by such proper officers.
3. The superintendent of the Missouri state highway patrol may assign qualified persons who are not highway patrol officers to supervise or operate permanent or portable weigh stations used in the enforcement of commercial vehicle laws. These persons shall be designated as commercial vehicle inspectors and have limited police powers:
(1) To issue uniform traffic tickets at a permanent or portable weigh station for violations of rules and regulations of the division of motor carrier services of the highway and transportation commission and department of public safety, and laws, rules, and regulations pertaining to commercial motor vehicles and trailers and related to size, weight, fuel tax, registration, equipment, driver requirements, transportation of hazardous materials and operators' or chauffeurs' licenses, and the provisions of sections 303.024 and 303.025;
(2) To require the operator of any commercial vehicle to stop and submit to a vehicle and driver inspection to determine compliance with commercial vehicle laws, rules, and regulations, the provisions of sections 303.024 and 303.025, and to submit to a cargo inspection when reasonable grounds exist to cause belief that a vehicle is transporting hazardous materials as defined by Title 49 of the Code of Federal Regulations;
(3) To make arrests for violation of subdivisions (1) and (2) of this subsection. Commercial vehicle inspectors shall not have the authority to exercise the powers granted in subdivisions (1), (2) and (3) of this subsection until they have successfully completed training approved by the superintendent of the Missouri state highway patrol; nor shall they have the right as peace officers to bear arms.
4. The superintendent of the Missouri state highway patrol may appoint qualified persons, who are not members of the highway patrol, designated as commercial vehicle enforcement officers, with the powers:
(1) To issue uniform traffic tickets for violations of laws, rules and regulations pertaining to commercial vehicles, trailers, special mobile equipment and drivers of such vehicles, and the provisions of sections 303.024 and 303.025;
(2) To require the operator of any commercial vehicle to stop and submit to a vehicle and driver inspection to determine compliance with commercial vehicle laws, rules, and regulations, compliance with the provisions of sections 303.024 and 303.025, and to submit to a cargo inspection when reasonable grounds exist to cause belief that a vehicle is transporting hazardous materials as defined by Title 49 of the Code of Federal Regulations;
(3) To make arrests upon warrants and for violations of subdivisions (1) and (2) of this subsection. Commercial vehicle officers selected and designated as peace officers by the superintendent of the Missouri state highway patrol are hereby declared to be peace officers of the state of Missouri, with full power and authority to make arrests solely for violations under the powers granted in subdivisions (1) to (3) of this subsection. Commercial vehicle enforcement officers shall not have the authority to exercise the powers granted in subdivisions (1), (2) and (3) of this subsection until they have successfully completed training approved by the superintendent of the Missouri state highway patrol and have completed the mandatory standards for the basic training and licensure of peace officers established by the peace officers standards and training commission under subsection 1 of section 590.030. Commercial vehicle officers who are employed and performing their duties on August 28, 2008, shall have until July 1, 2012, to comply with the mandatory standards regarding police officer basic training and licensure. Commercial vehicle enforcement officers shall have the right as peace officers to bear arms.
5. Any additional employees needed for the implementation of this section shall be hired in conformity with the provisions of the federal fair employment and antidiscrimination acts.
6. Any part of this section which shall be construed to be in conflict with the axle or tandem axle load limits permitted by the Federal-Aid Highway Act, Section 127 of Title 23 of the United States Code (Public Law 85-767, 85th Congress) shall be null, void and of no effect.
7. The superintendent may also appoint members of the patrol who are certified under the commercial vehicle safety alliance with the power to conduct commercial motor vehicle and driver inspections and to require the operator of any commercial vehicle to stop and submit to said inspections to determine compliance with commercial vehicle laws, rules, and regulations, compliance with the provisions of sections 303.024 and 303.025, and to submit to a cargo inspection when reasonable grounds exist to cause belief that a vehicle is transporting hazardous materials as defined by Title 49 of the Code of Federal Regulations.
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(RSMo 1939 § 8408, A.L. 1963 p. 422, A.L. 1965 p. 492, A.L. 1979 H.B. 454, A.L. 1985 H.B. 157 merged with H.B. 368, A.L. 1994 S.B. 475, A.L. 1998 H.B. 1802, A.L. 2008 S.B. 930 & 947)
Prior revision: 1929 § 7790
CROSS REFERENCE:
Division of motor carrier and railroad safety abolished, duties and functions transferred to highways and transportation commission and department of transportation, 226.008
(1994) Search of commercial motor vehicle pursuant to section was objectively authorized and legally permitted as state had legitimate governmental interest in stopping, weighing and inspecting vehicles for safety of persons traveling on state's highways and did not violate Fourth Amendment of the United States Constitution prohibiting unreasonable search and seizures. State v. Rodriguez, 877 S.W.2d 106 (Mo.banc).
(1996) Commercial vehicle inspector's ticketing powers are limited to weigh stations, which must be stationary. State v. Ruch, 926 S.W.2d 937 (Mo.App. W.D.).

Structure Missouri Revised Statutes

Missouri Revised Statutes

Title XIX - Motor Vehicles, Watercraft and Aviation

Chapter 304 - Traffic Regulations

Section 304.001 - Definitions for chapter 304 and chapter 307.

Section 304.005 - Autocycle — defined—protective headgear not required — valid driver's license required to operate.

Section 304.009 - Speed limit — violation, penalty.

Section 304.010 - Definitions — maximum speed limits — cities, towns, villages, certain counties, may set speed limit, how set — slower speeds set, when — violations, penalty.

Section 304.011 - Slow speed, regulation of — agricultural implements, slower speeds, when, special permits required — penalties.

Section 304.012 - Motorists to exercise highest degree of care — violation, penalty.

Section 304.013 - All-terrain vehicles, prohibited on highways, rivers or streams of this state, exceptions, operational requirements — special permits — prohibited uses — penalty.

Section 304.014 - Rules of the road to be observed.

Section 304.015 - Drive on right of highway — traffic lanes — signs — violations, penalties.

Section 304.016 - Passing regulations — violations, penalties.

Section 304.017 - Distance at which vehicle must follow, penalty.

Section 304.019 - Hand and mechanical signals, violations, penalty.

Section 304.022 - Emergency and stationary vehicles — use of lights and sirens — right-of-way — procedure — penalty.

Section 304.023 - Passing stopped streetcars, penalty.

Section 304.024 - Crosswalks and parking regulations established — signs — violation, an infraction.

Section 304.025 - Highway and vehicle defined.

Section 304.027 - Spinal cord injury fund created, uses — surcharge imposed, when.

Section 304.028 - Brain injury fund created, moneys in fund, uses — surcharge imposed, when.

Section 304.029 - Operation of low-speed vehicles on highway, permitted when — exemptions.

Section 304.030 - Certain buses and trucks to stop at railroad crossing, when — exception, requirements.

Section 304.031 - Traffic signal preemption system, use of, permitted when — violations, penalty.

Section 304.032 - Utility vehicles, operation on highway and in streams or rivers prohibited — exceptions — passengers prohibited — violations, penalty.

Section 304.033 - Recreational off-highway vehicles, operation on highways prohibited, exceptions — operation within streams and rivers prohibited, exceptions — license required for operation, exception.

Section 304.034 - Municipalities may regulate golf cart and motorized wheelchair usage on streets and highways.

Section 304.035 - Stop required at railroad grade crossing, when — commercial motor vehicles, speed at crossings — penalty.

Section 304.040 - Failure to stop, penalty.

Section 304.044 - Buses and trucks not to follow within three hundred feet — penalty.

Section 304.050 - School buses, drivers to stop for, when — signs required on buses — crossing control arm — bus driver responsibilities — driver identity rebuttable presumption, when (Jessica's Law).

Section 304.060 - School buses and other district vehicles, use to be regulated by board — field trips in common carriers, regulation authorized — violation by employee, effect — St. Louis County buses may use word "special".

Section 304.070 - Violation of section 304.050, penalty.

Section 304.075 - School bus signs to be removed, when — misdemeanor.

Section 304.076 - Head Start buses to bear signs.

Section 304.079 - Use of designated disabled parking spaces, when.

Section 304.080 - Handicapped persons with white cane or dog, driver to take all necessary precautions — cane or dog not required to enforce rights, when.

Section 304.110 - Violation of sections 304.080 to 304.110, penalty.

Section 304.120 - Municipal regulations — owner or lessor not liable for violations, when.

Section 304.125 - Traffic violation citation quota prohibited--exception.

Section 304.130 - Regulation of vehicular traffic — notice, hearings — approval — publication of notice (first class counties).

Section 304.140 - Penalty for violations.

Section 304.151 - Driver's responsibility not to obstruct traffic — written warning, infraction, effective date.

Section 304.152 - Roadside checkpoints and roadblock patterns based on vehicle type prohibited.

Section 304.153 - Tow companies or tow lists, utilization of by law enforcement and state transportation employees—definitions—requirements—unauthorized towing, penalty—inapplicability.

Section 304.154 - Towing truck company requirements—access to towed vehicles by insurance adjusters—notice to vehicle owner of transfer from storage lot or facility—display of tow company address, when.

Section 304.155 - Abandoned motor vehicles on public property, removal — hazards on land and water, removal, limited liability, when — towing of property report to highway or water patrol or crime inquiry and inspection report when, owner liable for...

Section 304.156 - Notice to towing company, owner or lienholder, when — storage charges, when authorized — search of vehicle for ownership documents — petition, determination of wrongful taking — possessory lien, new title, how issued — sale of aband...

Section 304.157 - Vehicles left unattended or improperly parked on private property of another, procedure for removal and disposition — violation of certain required procedure, penalty.

Section 304.158 - Notice to owner of abandoned property — duty of real property owner — liability of towing company — recovery for damages to real property, when — liability of real property owner for towing charges, when — information to be displaye...

Section 304.159 - Municipality may prohibit storage of certain vehicles, exceptions.

Section 304.160 - Glass, tacks, injurious substances, duty to remove from highway, when — penalty.

Section 304.170 - Regulations as to width, height and length of vehicles — inapplicability, when — implements of husbandry defined — sludge disposal units.

Section 304.172 - Fire-fighting equipment exempt from size restrictions.

Section 304.174 - Size and load restrictions not applicable to wreckers, tow trucks, rollbacks and car carriers, when.

Section 304.180 - Regulations as to weight — axle load, tandem axle defined — transport of specific items, total gross weight permitted — requirements during disasters — specific vehicles, maximum weight.

Section 304.181 - Buses, axle weight limits.

Section 304.184 - Transportation of solid waste, weight restrictions for trucks and tractor-trailers.

Section 304.190 - Height and weight regulations (cities of 75,000 or more) — commercial zone defined.

Section 304.200 - Special permits for oversize or overweight loads — rules for issuing — when valid.

Section 304.210 - Reduction of maximum weight by highways and transportation commission — notice.

Section 304.220 - Weight limits on county roads and bridges reduced, when — penalty for violation.

Section 304.230 - Enforcement of load laws — commercial vehicle inspectors, powers.

Section 304.232 - Municipal law enforcement officers, state highway patrol to approve certification procedures — fees — requirements — random roadside inspections prohibited, when — rulemaking authority.

Section 304.235 - Commercial vehicles licensed for eighteen thousand pounds or less not to stop at weigh station or be otherwise identified — confidentiality rules do not apply to commercial vehicle enforcement officers, when — penalty for evading we...

Section 304.240 - Violation of load law a misdemeanor — penalty — local log truck and local log truck tractor, violation, penalty.

Section 304.250 - Restriction on use of metal-tired vehicles — penalty.

Section 304.260 - Tractors exempt — designation of truck routes by commission.

Section 304.271 - Observance of traffic-control devices — presumptions — penalty.

Section 304.281 - Rules for traffic where controlled by light signals — right turn on red light, when — violations, penalty.

Section 304.285 - Red light violations by motorcycles or bicycles, affirmative defense, when.

Section 304.289 - Timing of signals, minimum interval times to be established.

Section 304.291 - Rules for pedestrians controlled by special signs.

Section 304.301 - Rules for vehicular traffic controlled by flashing signals — violation, penalty.

Section 304.311 - Observance of lane — direction — control signals.

Section 304.321 - Unauthorized signal devices prohibited — trafficway not to be used for signs — nuisances declared.

Section 304.331 - Alteration or removal of traffic-control devices prohibited.

Section 304.341 - Turns at intersection — violation, penalty.

Section 304.351 - Right-of-way at intersection — signs at intersections — violation, penalty — additional penalties — definitions — order of suspension, contents, appeal.

Section 304.361 - Penalty for violation of sections 304.271 to 304.351.

Section 304.373 - Hazardous materials, requirements for transportation — violations, penalties.

Section 304.570 - Penalty for violations.

Section 304.580 - Definitions.

Section 304.582 - Fines for moving violations — fines for violations in work or construction zones — signs required for assessing fines — penalty for passing in work or construction zones — not applicable to court costs.

Section 304.585 - Endangerment of a highway worker defined — fine, points assessed — aggravated endangerment of a highway worker, fine, points assessed — offense not applicable in absence of workers in zone — no citation or conviction, when — revocat...

Section 304.590 - Travel safe zone defined — doubling of fine for violation in — signage required.

Section 304.665 - Riding in open bed of truck prohibited, when, exceptions, penalty.

Section 304.670 - Collection and maintenance of certain information regarding traffic law enforcement, analyses to be conducted.

Section 304.678 - Distance to be maintained when overtaking a bicycle — violation, penalty.

Section 304.705 - Certain trucks not to drive in far left lane of certain interstate highways (St. Charles and Jefferson counties).

Section 304.725 - Veterans displaying special license plates or certain military medal recipients may park without charge in metered parking — windshield placard for veterans and certain military medal recipients — exceptions.

Section 304.820 - Text messaging and using a hand-held mobile device while operating a motor vehicle prohibited, when — exceptions — definitions — violation, penalty.

Section 304.890 - Definitions.

Section 304.892 - Violations, penalties.

Section 304.894 - Offense of endangerment of an emergency responder, elements — penalties — revocation of driver's license, when.

Section 304.900 - Personal delivery devices, authority to operate — definitions — requirements — insurance — lighting equipment required, when — personally identifiable likeness, sale of prohibited.