New Mexico Speed Limit Laws | Laws & Restrictions

Betti Holt

Betti Holt

You’ll need to stay sharp steering through New Mexico’s roads, where speed limits aren’t just numbers but carefully set rules—75 mph on highways, 35 mph in business zones, 15 mph near schools. Beyond absolute limits, you’re required to adjust speed for road and weather conditions. Now, there’s added complexity with Senate Bill 226 proposing a new 65 mph cap specifically for trucks, stirring debate about safety and traffic flow. The full picture of these changes is far from settled.

New Mexico Speed Limit Laws

Key Takeaways

  • New Mexico’s maximum speed limit is 75 mph on highways, 35 mph in business or residential areas, and 15 mph in school zones when children are present.
  • Drivers must control speed to avoid collisions, adjusting for road, traffic, weather, and visibility conditions beyond posted limits.
  • Senate Bill 226 proposes a new 65 mph speed limit for large trucks statewide, with a $250 fine for violations, effective July 1, 2025.
  • Speeding fines range from $25 (up to 10 mph over) to $200 (over 35 mph), with higher fines in construction zones and point assessments based on severity[BACKGROUND].
  • Reckless driving carries penalties up to $500 fines and 90 days jail; fatal speeding can lead to vehicular homicide charges with longer prison terms[BACKGROUND].

New Mexico’s Absolute Speed Limits

New Mexico sets absolute speed limits designed to regulate traffic safety and flow clearly.

You must adhere to 75 mph on highways, 35 mph in business or residential areas, and 15 mph in school zones.

These absolute speed limits serve as clear legal maximums to prevent unsafe driving conditions.

Absolute speed limits in New Mexico establish firm maximum speeds to ensure road safety and prevent hazardous conditions.

Remember, the state’s basic speeding law also requires you to control your speed to avoid collisions regardless of posted limits.

Violating these speed limits results in fines starting at $25 for up to 10 mph over, escalating up to $200 for exceeding by more than 35 mph, along with driving record points from three to eight.

Basic Speeding Law and Safe Driving Requirements

Although absolute speed limits define maximum speeds, you must also control your speed at all times to avoid collisions, regardless of posted limits.

New Mexico’s basic speeding law requires you to adjust your speed based on road, traffic, weather, and visibility conditions to drive safely.

You can be ticketed not only for exceeding absolute limits—75 mph on highways, 35 mph in business and residential areas, and 15 mph in school zones—but also for unsafe speed under existing circumstances.

Violating the basic speeding law may lead to fines, points on your license, and even reckless or careless driving charges.

Control your speed responsibly to comply and stay safe.

Senate Bill 226 and Proposed Truck Speed Limits

Controlling your speed under varying conditions is fundamental, but regulating truck speeds specifically has come under scrutiny in New Mexico.

Senate Bill 226 proposes a *specific speed* limit of 65 mph for large trucks on affected highways, differentiating them from other vehicles limited to 75 mph. Sponsored by Senator George Munoz, the bill aims to reduce traffic congestion caused by slow-moving trucks, especially on I-40, where lines can extend up to 10 miles.

Violators face a $250 fine, incentivizing compliance. However, concerns persist about increased crash risks from the speed differential, per the New Mexico Department of Transportation.

Traffic Challenges on Interstate 40 and Truck Speed Concerns

Truck traffic on Interstate 40 significantly contributes to congestion, with slow-moving trucks causing long traffic lines and safety risks due to extended passing times.

These delays disrupt traffic flow and increase frustration for drivers, highlighting the need to address how truck speed impacts overall congestion.

Implementing consistent truck speed limits, like those proposed in Senate Bill 226, aims to improve safety and reduce bottlenecks caused by slow truck movement.

Truck Speed Impact

IssueProposed Solution
Slow-moving trucks65 mph speed limit for trucks
Extended traffic backupsReduced speed differential
Conflicts between truckersUniform compliance and fines

Sen. George Munoz insists this will ease traffic and boost safety on I-40.

I-40 Congestion Causes

Because slow-moving trucks and their attempts to pass one another at low speeds often cause extensive backups—sometimes stretching for 10 miles—Interstate 40 experiences significant congestion issues.

Truck traffic on I-40, making up a large portion of vehicles, slows overall flow and creates long lines, especially in rural and construction areas.

To address these delays, New Mexico Senator George Munoz proposed a maximum speed limit of 65 mph for trucks, aiming to improve safety and traffic movement.

However, the New Mexico Department of Transportation warns that varying speed limits between trucks and other vehicles may increase crash risks due to speed differentials.

The proposed SB226 legislation seeks to formalize this speed limit differential to better conditions on I-40.

Legislative Process and Status of SB 226

Although Senate Bill 226 (SB226) has successfully passed both the Senate Transportation and Senate Judiciary Committees and received Senate approval with a 17-13 vote, it now awaits consideration by the House before the New Mexico Legislature adjourns on March 22.

SB226 proposes a 65 mph speed limit specifically for trucks on affected roadways like I-40 to ease congestion caused by slow-moving trucks.

Violators would face fines of $250, underscoring enforcement seriousness.

With the session time-limited, swift House approval is essential to change New Mexico’s truck speed regulations before adjournment.

Opposition Perspectives on Truck Speed Differentials

Senate Bill 226’s proposal to set a 65 mph speed limit exclusively for trucks faces strong opposition centered on the safety risks of speed differentials.

Critics, including Sen. Joshua Sanchez and the New Mexico Department of Transportation, argue that trucks traveling slower than independent truckers and passenger vehicles increase crash risk due to conflicting speeds.

OOIDA warns these differentials escalate unsafe interactions, aggressive driving, and accidents.

Many states reversed such measures amid safety concerns, doubting their effectiveness.

Opponents doubt the new $250 speeding ticket fine for trucks will solve congestion or safety issues on I-40.

Role and Position of the Owner-Operator Independent Drivers Association (OOIDA)

You won’t find the Owner-Operator Independent Drivers Association (OOIDA) supporting speed differentials for trucks because they believe these measures decrease overall road safety.

They argue that having trucks and passenger vehicles travel at different speeds increases interactions between them, which leads to more aggressive driving and accidents.

OOIDA also highlights evidence from states that eliminated speed differentials due to the resulting congestion and unsafe conditions on highways.

Safety Concerns Raised

While lawmakers argue that lowering truck speed limits could reduce congestion and improve safety, the Owner-Operator Independent Drivers Association (OOIDA) strongly opposes such measures, warning that imposing different speed limits for trucks actually increases safety risks.

They argue that:

  1. Speed differentials cause more traffic violations by increasing car-truck interactions.
  2. These interactions often lead to aggressive driving behaviors.
  3. Increased passing attempts heighten collision chances.
  4. Many states reversed such policies due to higher accident rates.

OOIDA criticizes Senator Munoz for negatively portraying trucks and ignoring their traffic role, emphasizing unified speed limits improve overall road safety.

Opposition to Speed Differentials

The Owner-Operator Independent Drivers Association (OOIDA) strongly opposes setting a lower speed limit exclusively for trucks in New Mexico, arguing that creating speed differentials increases safety risks rather than reducing them.

They warn that having exceptions include slower trucks could worsen safety by increasing interactions and passing maneuvers between cars and trucks, which often lead to aggressive driving and accidents.

OOIDA also notes that many states have reverted to uniform speed limits due to these dangers.

The New Mexico Department of Transportation shares these concerns, highlighting a potential rise in crashes from such speed differentials.

Doug Morris of OOIDA criticizes Senator Munoz’s negative view of trucks, which influences the bill’s support.

Speeding Penalties and Fine Structure in New Mexico

Because speeding in New Mexico carries fines that rise with the severity of the offense, it’s essential to understand how penalties escalate based on how much you exceed the speed limit.

The speeding penalties include:

  1. Fines range from $25 for up to 10 mph over to $200 for more than 35 mph over the limit.
  2. Speeding in posted construction zones results in increased fines, often double the standard penalties.
  3. Traffic violation points escalate with your speeding severity, from three points for 11-15 mph over to eight points for exceeding 35 mph.
  4. Accumulating points or repeat offenses can lead to harsher fines and possible license suspension.

Drive within limits to avoid these escalating penalties.

If you drive recklessly in New Mexico, knowingly disregarding safety, you risk severe penalties including fines up to $500 and jail time of up to 90 days for a first offense.

Reckless driving means operating a vehicle with willful disregard for safety and can lead to criminal charges. If your speeding causes a fatality, you may face vehicular homicide charges, which carry lengthy prison sentences.

Even careless driving can trigger penalties, especially if it results in accidents or injuries. Accumulating points from these offenses can increase insurance costs and eventually suspend your driving privileges.

Importance of Engineering Studies and Local Adjustments in Setting Speed Limits

Local authorities use engineering studies to:

Local authorities use engineering studies to determine safe and reasonable speed limits tailored to each roadway’s conditions and regional needs.

  1. Assess each roadway’s unique conditions for accurate speed limits
  2. Tailor speed limits through traffic investigations to fit regional needs
  3. Increase or decrease limits based on comprehensive safety data
  4. Enforce unsafe speed violations under basic speeding laws regardless of posted limits

In New Mexico, while 75 mph is standard on highways, engineering studies enable local adjustments ensuring safety and efficiency[FACTS].

State-by-State Speed Limit Laws: Speed Rules, Fines, and Penalties Explained

AlabamaAlabama’s speed limits range from 25 mph in residential areas to 70 mph on interstates. The state uses absolute limits, with fines increasing by mph over and points added to the license.
AlaskaAlaska generally sets speed limits at 55–65 mph on highways and 25 mph in cities. It follows a basic speeding law, allowing tickets even below posted limits if conditions are unsafe.
ArizonaArizona allows speeds up to 75 mph on rural freeways. The state enforces absolute speed limits, with fines, points, and possible suspension for excessive speeding.
ArkansasArkansas speed limits typically range from 25 mph in cities to 75 mph on interstates. Absolute limits apply, and violations result in fines and license points.
CaliforniaCalifornia’s maximum speed limit is 65–70 mph on highways. The state uses both absolute and basic speed laws, meaning drivers can be cited even under the posted limit if driving unsafely.
ColoradoColorado allows speeds up to 75 mph on rural interstates. It enforces absolute limits, with higher penalties for speeds exceeding 25 mph over the limit.
ConnecticutConnecticut speed limits range from 25 mph in residential areas to 65 mph on highways. Absolute limits apply, with fines, points, and insurance impacts for violations.
DelawareDelaware’s speed limits typically cap at 65 mph on highways. The state enforces absolute limits, issuing fines and points for each speeding offense.
FloridaFlorida allows speeds up to 70 mph on interstates and 30 mph in cities. Absolute speed limits apply, with fines increasing as speed exceeds the limit.
GeorgiaGeorgia speed limits reach 70 mph on interstates and 30 mph in urban areas. Absolute limits apply, with Super Speeder penalties for excessive speeds.
HawaiiHawaii generally limits speeds to 25 mph in cities and 60 mph on highways. Absolute speed laws apply, with fines and points for violations.
IdahoIdaho allows speeds up to 80 mph on rural interstates. The state enforces absolute limits, with fines and license points for speeding.
IllinoisIllinois speed limits range from 30 mph in cities to 70 mph on highways. Absolute limits apply, with higher penalties for construction zone violations.
IndianaIndiana allows speeds up to 70 mph on interstates. Absolute speed limits apply, with fines, points, and potential suspension for repeat offenses.
IowaIowa speed limits range from 25 mph in residential zones to 70 mph on highways. Absolute limits apply, with fines based on mph over the limit.
KansasKansas allows speeds up to 75 mph on rural highways. The state enforces absolute speed limits with fines and license points.
KentuckyKentucky speed limits typically reach 70 mph on interstates. Absolute limits apply, and excessive speeding may result in suspension.
LouisianaLouisiana speed limits range from 25 mph in cities to 75 mph on highways. Absolute speed laws apply, with fines and points added.
MaineMaine allows speeds up to 75 mph on interstates. The state applies absolute speed limits, with fines increasing by mph over.
MarylandMaryland speed limits typically cap at 65 mph. Absolute limits apply, and excessive speeding can trigger reckless driving charges.
MassachusettsMassachusetts speed limits range from 25 mph in thickly settled areas to 65 mph on highways. The state enforces absolute limits with fines and points.
MichiganMichigan speed limits vary by vehicle type and roadway, reaching up to 75 mph. Absolute limits apply, with higher penalties for severe speeding.
MinnesotaMinnesota allows speeds up to 70 mph on highways. The state enforces absolute limits, issuing fines and points for violations.
MississippiMississippi speed limits range from 30 mph in cities to 70 mph on highways. Absolute limits apply, with fines and license points.
MissouriMissouri allows speeds up to 70 mph on interstates. Absolute speed limits apply, with fines and points assessed.
MontanaMontana allows speeds up to 80 mph on rural interstates. The state uses absolute limits, with steep penalties for excessive speeding.
NebraskaNebraska speed limits range from 25 mph in cities to 75 mph on highways. Absolute limits apply, with fines based on speed over.
NevadaNevada allows speeds up to 80 mph on rural interstates. Absolute speed laws apply, with higher fines for major violations.
New HampshireNew Hampshire generally limits speeds to 55–65 mph. The state applies absolute speed limits with fines and possible suspension.
New JerseyNew Jersey speed limits range from 25 mph in residential areas to 65 mph on highways. Absolute limits apply with points and fines.
New YorkNew York’s default speed limit is 55 mph unless posted. Absolute limits apply, with points, fines, and possible suspension.
North CarolinaNorth Carolina speed limits reach 70 mph on highways. The state enforces absolute limits, with steep penalties for speeds 15+ mph over.
North DakotaNorth Dakota allows speeds up to 75 mph. Absolute speed limits apply, with fines and potential license action.
OhioOhio speed limits range from 25 mph in cities to 70 mph on highways. Absolute limits apply, with fines and points assessed.
OklahomaOklahoma allows speeds up to 75 mph on highways. Absolute limits apply, and extreme speeding may result in jail time.
OregonOregon speed limits range from 25 mph in cities to 70 mph on rural highways. The state applies absolute limits with escalating fines.
PennsylvaniaPennsylvania allows speeds up to 70 mph. Absolute speed limits apply, with fines and points added for violations.
Rhode IslandRhode Island speed limits typically cap at 65 mph. Absolute limits apply, with fines and possible suspension.
South CarolinaSouth Carolina allows speeds up to 70 mph on interstates. Absolute speed laws apply with fines and points.
South DakotaSouth Dakota allows speeds up to 80 mph. Absolute limits apply, with fines and license points.
TennesseeTennessee speed limits reach 70 mph. Absolute speed limits apply, with enhanced penalties for high-speed violations.
TexasTexas allows speeds up to 85 mph on select highways. Absolute limits apply, with fines and license consequences.
UtahUtah speed limits reach 80 mph on rural interstates. Absolute limits apply, with fines and points.
VermontVermont’s speed limit is usually 50 mph unless posted. The state applies absolute limits and a basic speeding law. Fines run $5–$24 per mph over, with points and possible suspension.
VirginiaVirginia’s maximum speed is 70 mph. Driving 20 mph over or above 85 mph is reckless driving, carrying criminal penalties.
WashingtonWashington speed limits range from 25 mph in cities to 70 mph on highways. Absolute limits apply, with fines and points.
West VirginiaWest Virginia allows speeds up to 70 mph. Absolute limits apply, with fines and possible suspension for repeat offenses.
WisconsinWisconsin speed limits range from 25 mph in cities to 70 mph on highways. Absolute limits apply, with fines and points.
WyomingWyoming allows speeds up to 80 mph on interstates. Absolute limits apply, with enhanced penalties for excessive speeding.

 

Frequently Asked Questions

How Much Can You Go Over the Speed Limit in New Mexico?

You can’t legally exceed the speed limit in New Mexico without facing speeding penalties. Fines start at $25 for up to 10 mph over and increase up to $200 if you go more than 35 mph over the limit.

How Much Over the Speed Limit Is Okay?

You aren’t allowed to go over the speed limit without risking speeding consequences. Even 1 mph over can lead to fines in New Mexico, increasing steeply with how much you exceed the limit. Control your speed to avoid violations and penalties.

What’s the Speed Limit on I-40 in New Mexico?

The speed limit on I-40 in New Mexico is 75 mph for most vehicles, including passenger cars. However, under new I-40 regulations, trucks may soon have a lower limit of 65 mph to improve safety and traffic flow. This change is pending legislation effective mid-2025.

What States Allow 80MPH?

You can legally drive 80 mph on highways in Texas, Oklahoma, Idaho, Utah, Wyoming, and North Dakota, where highway regulations allow such limits after engineering or traffic studies justify raising speed limits. Washington sets 75 mph max based on similar studies.

Conclusion

You’ll love how New Mexico makes it simple: 75 mph for you, 65 mph for trucks—because nothing says safety like forcing different speeds and lining up traffic for miles behind slow trucks on Interstate 40. After all, the more you mix speeds, the safer it gets, right? And hey, if you’re a trucker, a $250 fine awaits if you dream of going just 66 mph. Irony drives this law home better than your accelerator ever could.

Betti Holt
About the author
Betti Holt
Betti holt, the customer service manager at CarsCounsel, has a decade of experience in client relations and service management. Betti ensures that customers are informed about their vehicle’s status and that their service needs are promptly met.

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