Missouri License Plate Covers: Clear Only, Reflectivity Must Survive

The permission and the limit sit in the same sentence, so the analysis for a Missouri driver is short. A cover is lawful if it is transparent, if every part of the plate remains plainly visible through it, and if the plate's reflective qualities are not impaired. A cover fails if it does any of those three things, and the reflectivity condition is the one that catches most aftermarket products. Section 301.130.1 requires Missouri plates to contain fully reflective material with a common color scheme and design for each plate type and states that the plates shall be clearly visible at night. A tinted or mirrored cover sold to frustrate a camera works precisely by cutting the return of that reflective sheeting, which is the impairment the statute names.

The rest of Section 301.130.5 sets the mounting rules a cover has to live within. Plates must be securely fastened so that all parts are plainly visible and reasonably clean. On all motor vehicles other than trucks, tractors and truck-tractors licensed above twelve thousand pounds, plates go on the front and the rear, not less than eight nor more than forty-eight inches above the ground, with the letters and numbers right side up. Missouri has no passenger car exemption from the front plate, so a driver who removes the front plate and tints the rear cover has committed two distinct violations of the same subsection. Trailers, motorcycles, motortricycles, autocycles and motorscooters are handled differently: under Section 301.130.3 only one plate is issued for those vehicles, and Section 301.130.5 requires it to be displayed on the rear either horizontally or vertically, with the letters and numbers plainly visible. Vertical mounting is an express statutory option in Missouri, which matters for riders using a side-mount bracket.

A cover also has to leave the registration tab alone. Section 301.130.6(2) requires the vehicle owner to affix and display the tab or set of tabs in the designated area of the license plate, no more than one per plate, and Section 301.130.6(3) makes a properly attached tab prima facie evidence that the registration fee has been paid. A frame or cover that overlaps the tab corner defeats that evidentiary function and puts the plate outside the plainly visible requirement at the same time. Section 301.130.5 adds that plates authorized by Section 301.140, when properly attached, are prima facie evidence that the required fees have been paid, so display and proof of payment are linked throughout the section.

What Missouri does not have is as informative as what it has. A full-text search of the Revised Statutes of Missouri returns the phrase "transparent cover" in exactly one section, Section 301.130, and returns nothing for a plate cover offense, a plate obscuring spray, a licence plate flipper or any automated enforcement countermeasure. There is no separate obstructed plate offense, no dedicated fine schedule and no equipment approval process for covers through the Department of Revenue. Everything turns on the two conditions in Section 301.130.5. Two dates are worth knowing alongside them: Section 301.130.6(4) directs the director of revenue to issue plates for a period of at least six years, and Section 301.130.9 required the director to begin reissuing plates of a new design approved by the advisory committee under Section 301.125 no later than January 1, 2019, with historic plates registered under Section 301.131 and specialized plates exempted from the reissuance cost.

130 states no penalty of its own, so the chapter's residual provision applies. 440 for which no specific punishment is given is guilty of an infraction punishable by a fine of not less than five dollars or more than five hundred dollars. 1 opens by excepting an offense provided for outside the criminal code, and chapter 301 is outside it. 1(1) assesses its two points against moving violations, which a static display requirement is not. Enforcement is roadside, by the Missouri State Highway Patrol and by municipal and county officers, and the practical cure is immediate: remove the cover, clean the plate, and the condition ends.

There is no administrative process for contesting a display citation, which is answered in the municipal division or associate circuit division that issued it, and no Department of Revenue approval scheme for aftermarket covers.