MS state page · Last reviewed 2026-05-26

Mississippi Truck Weight Limits and Permit Sources

Mississippi truck weight reference with official permit links, FHWA weight source tracking, CTED overweight assessment context, and conservative seasonal status labels.

At-a-glance summary

Field Value Source Status Confidence
Gross Federal Interstate gross limit is 80,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Single axle Federal Interstate single-axle limit is 20,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Tandem axle Federal Interstate tandem limit is 34,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Bridge formula Federal bridge formula checks apply on Interstate routes; verify state exceptions and permit conditions before movement. inferred from official source medium
Permit agency Mississippi Department of Transportation confirmed high
Seasonal / frost No official statewide seasonal or frost weight restriction was confirmed during this review. not found in official review low
Fine source Mississippi DPS CTED assesses overweight violations as civil delinquent privilege taxes under a fee schedule based on weight over the legal limit; assessments can be appealed to the CTED Appeals Board; verify the actual assessment notice and applicable statutory schedule before estimating amounts. inferred from official source medium

Field-level reference data

Regular weight limits

Gross vehicle weight limit Federal Interstate gross limit is 80,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Single axle limit Federal Interstate single-axle limit is 20,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Tandem axle limit Federal Interstate tandem limit is 34,000 lb; Mississippi-specific limits are in the FHWA state law compilation linked here. inferred from official source medium
Bridge formula applies Federal bridge formula checks apply on Interstate routes; verify state exceptions and permit conditions before movement. inferred from official source medium
Interstate notes Use FHWA Interstate limits together with the state source and any permit conditions. inferred from official source medium
Non-Interstate notes Use the reviewed state source and local postings for non-Interstate operation. inferred from official source medium

Axle and loading notes

Steer axle notes Steer axle review should include axle law, tire/equipment ratings, registration, and route postings. inferred from official source medium
Drive axle notes Drive axle groups should be checked against tandem/group limits and permit terms. inferred from official source medium
Trailer tandem notes Trailer tandem position changes distribution and may affect spacing-sensitive checks; re-weigh after adjustment. inferred from official source medium
Fifth wheel notes Fifth-wheel movement redistributes weight but does not create permit authority. inferred from official source medium
Bridge law notes Check FHWA bridge formula and the state source when axle spacing is close to a limit. inferred from official source medium

Oversize / overweight permits

Permit agency Mississippi Department of Transportation confirmed high
Permit office name MDOT Permits confirmed high
Official permit URL Mississippi DOT permit source. confirmed high
Online permit portal Use MDOT Permits official source for current online filing or portal links. inferred from official source medium
Permit contact Use contact information published by MDOT Permits. inferred from official source medium
Permit notes Permit terms, route conditions, dates, and vehicle configuration should be checked on the official permit source before travel. inferred from official source medium

Seasonal and special restrictions

Frost / seasonal restriction No official statewide seasonal or frost weight restriction was confirmed during this review. not found in official review low
Seasonal weight notes Local route, bridge, or permit restrictions may still apply; no statewide seasonal weight restriction was confirmed in this review. not found in official review low
Official seasonal URL not found in official review low

Fines and enforcement

Overweight fine structure Mississippi DPS CTED assesses overweight violations as civil delinquent privilege taxes under a fee schedule based on weight over the legal limit; assessments can be appealed to the CTED Appeals Board; verify the actual assessment notice and applicable statutory schedule before estimating amounts. inferred from official source medium
Overweight ticket notes Use the actual CTED assessment notice, the applicable fee schedule, and CTED Appeals Board review options before estimating amounts owed. inferred from official source medium
Enforcement agency Mississippi Department of Public Safety, Commercial Transportation Enforcement Division (CTED) inferred from official source medium
Fine official URL Mississippi DPS Commercial Transportation Enforcement Division overweight assessment source. inferred from official source medium
CSA / safety notes CSA impact depends on inspection and reporting; use FMCSA SMS materials and the actual inspection record. inferred from official source medium

Scale notes

Public scale notes A public scale ticket is a self-check record, not state permit authority. inferred from official source medium
Weigh station / enforcement notes Mississippi DPS CTED enforces commercial vehicle weight limits; MDOT truck weight law materials provide weight-limit context; compare scale readings with official limits and permit terms. inferred from official source medium
CAT Scale disclaimer CAT Scale tickets are private self-check records and do not replace official permits or enforcement decisions. inferred from official source medium
Scale ticket notes Use steer, drive, trailer, and gross readings to compare against official limits before travel. inferred from official source medium

Mississippi’s enforcement structure has a notable distinction. The Department of Public Safety Commercial Transportation Enforcement Division assesses overweight violations as civil delinquent matters rather than through a traditional criminal or schedule-based fine structure. That civil delinquent framing affects how the enforcement outcome looks administratively, and it’s worth noting if a citation result in Mississippi is being reviewed for compliance records or dispute purposes.

Reading the Mississippi weight table

Weight rows use the federal Interstate baseline and the FHWA state law compilation for Mississippi. I-20, I-55, and I-59 are major freight corridors. Federal baseline applies on Interstate routes. For state routes and local roads, verify the FHWA state law compilation and any permit conditions. Mississippi’s agricultural and timber routes involve rural road segments where local bridge and road conditions can affect effective limits.

When a tandem reading is close to a limit after a slide, keep both the before and after tickets. Mississippi’s rural route mix means that local condition variations can make the axle comparison record important.

Permit and route authority in Mississippi

MDOT Permits handles over-limit permits for Mississippi. Applications go through MDOT’s current permit portal. Mississippi permits cover route, dates, vehicle configuration, and axle weights. For agricultural and timber moves on rural routes, permit conditions may include specific road class restrictions. The issued permit covers the specific approved move.

Seasonal, route, and local checks

No statewide frost-law or seasonal weight restriction was confirmed for Mississippi in this review. Mississippi’s climate doesn’t produce frost-law restrictions. Local bridge postings and construction zone restrictions can still affect specific routes, particularly on rural roads serving agricultural shippers.

Tickets and enforcement notes

Mississippi DPS Commercial Transportation Enforcement Division handles roadside weight enforcement. The civil delinquent structure for overweight violations means the enforcement outcome may look different from a standard citation fine. For any violation in Mississippi, the specific agency action, applicable Mississippi statute, and any DPS instructions are the controlling documents. Working from the actual enforcement record is essential given the civil delinquent framing.

Source-strength notes for Mississippi

Source coverage here runs to 7 records. Of the total fields, 3 are high confidence, 23 medium confidence, and 3 low confidence. Permit agency and enforcement agency fields are confirmed. Fine fields are medium confidence given the civil delinquent structure, which makes direct comparison to a schedule-based fine difficult. No statewide seasonal source confirmed; those fields carry low confidence.

Building a Mississippi source file

A Mississippi dispatch file should include MDOT permit documentation, current scale ticket, approved route, and a note on the civil delinquent enforcement structure for any citation follow-up. The axle weight table, permit office list, seasonal restrictions, and overweight fines pages support multi-state planning.

How to Read a CAT Scale Ticket covers ticket reading. How to Slide Tandems covers distribution. Bridge Formula Explained covers bridge spacing.

FAQ

How does Mississippi handle overweight enforcement?

Mississippi DPS Commercial Transportation Enforcement Division assesses overweight violations as civil delinquent matters, which differs from a standard citation fine structure.

Who handles Mississippi oversize and overweight permits?

MDOT Permits handles over-limit permits for Mississippi. Applications go through MDOT before the move.

Does Mississippi have statewide seasonal weight restrictions?

No statewide frost-law source was confirmed for Mississippi. Local bridge postings on rural roads may still apply on routes serving agricultural shippers.