In addition to "absolute speed limits" (see below), Louisiana's "basic speeding law" prohibits driving at a speed greater than is reasonable and prudent under the conditions and potential hazards then existing, having due regard for the traffic on, and the surface and width of, the highway, and the condition of the weather. (La. Stat. Ann. § 32:64(A) (2017).)
A first-time speeding violator may be:
Louisiana defines reckless operation (also called "reckless driving") as driving in a “criminally negligent or reckless manner.” For a first offense, a motorist faces up to 90 days in jail and/or $200 in fines. (La. Stat. Ann. § § 14:12, 14:99 (2017).)
(Read more about Louisiana's reckless operation laws and the consequences of a conviction.)
Louisiana's absolute speed limits are:
Louisiana has what is known as an “absolute” speed limit law. There's no trick to how it works: If the sign says 40 miles per hour and you drive 41 miles per hour or more, you have violated the law. In other words, you are guilty if you drive over the speed limit. In Louisiana you may be able to make three possible defenses:
Note that in Louisiana you can be ticketed for driving at an unsafe speed, even if that speed does not violate the posted limit—for example, driving exactly at the maximum posted limit on the freeway amidst slower and heavy traffic, in a dense fog, or in a driving rainstorm or blizzard.