St. Peters, MO Sign Regulations: Digital Billboards (2026)

Section 405.765(D) of the St. Peters Municipal Code governs how an electronic, or digital, billboard may operate along the City's permitted I-70 and Route 94 corridor. Under Section 405.765(D)(1)(a)(1), the full off-premises sign image, or any portion of it, must display for a minimum of 10 seconds, and no part of the image may flash, twirl, change color or otherwise imitate movement, although the ordinance carves out one exception: written messages are allowed to scroll across the sign. Section 405.765(D)(1)(a)(2) closes off the broader category of motion effects, barring any change in message or background achieved through motion, pictorial imagery, action sequences, special effects, or a progression of frames that creates the illusion of movement, moving patterns, or expanding and contracting shapes.

When the image does change, Section 405.765(D)(1)(a)(3) requires the transition happen by instantaneous re-pixalization, meaning the display switches all at once rather than fading, wiping or animating between messages. Section 405.765(D)(5), under the Type heading for outdoor advertising signage generally, restates the timing rule from the sign-type perspective: electronic billboards are permitted, but their electronic messages may change no more frequently than every 10 seconds, matching the minimum display duration set earlier in the same section. Read together, these provisions let a digital billboard cycle through static advertising slides on a strict timer, but block anything resembling video, animation or transition effects between slides.