MA state page · Last reviewed 2026-05-25

Massachusetts Truck Weight Limits and Permit Sources

Massachusetts truck weight limits with MassDOT permit authority, State Police CVSE enforcement, and MGL Chapter 90 section 19 as the penalty statute.

At-a-glance summary

Field Value Source Status Confidence
Gross Federal Interstate gross limit is 80,000 lb; Massachusetts-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; Massachusetts-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; Massachusetts-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 Massachusetts 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 Massachusetts General Laws Chapter 90 section 19 is the official source reviewed for weight provisions and penalties. confirmed medium

Field-level reference data

Regular weight limits

Gross vehicle weight limit Federal Interstate gross limit is 80,000 lb; Massachusetts-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; Massachusetts-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; Massachusetts-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 Massachusetts Department of Transportation confirmed high
Permit office name MassDOT Oversize/Overweight Permits confirmed high
Official permit URL MassDOT oversize/overweight permit source. confirmed high
Online permit portal Use MassDOT Oversize/Overweight Permits official source for current online filing or portal links. inferred from official source medium
Permit contact Use contact information published by MassDOT Oversize/Overweight 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 Massachusetts General Laws Chapter 90 section 19 is the official source reviewed for weight provisions and penalties. confirmed medium
Overweight ticket notes Use MGL Chapter 90 section 19 and the actual citation before estimating penalties. inferred from official source medium
Enforcement agency Massachusetts State Police Commercial Vehicle Enforcement Section confirmed medium
Fine official URL Official fine or penalty source linked in Sources. confirmed 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 Compare scale readings with official limits, route postings, and any 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

Massachusetts fines for overweight violations are anchored in Massachusetts General Laws Chapter 90 section 19, which was reviewed as the official penalty framework. Massachusetts State Police Commercial Vehicle Enforcement Section handles enforcement. MassDOT handles permits. Chapter 90 is also the broad vehicle law chapter — reviewing it for overweight penalties gives a fairly direct statutory connection.

Reading the Massachusetts weight table

Weight rows use the federal Interstate baseline and the FHWA state law compilation for Massachusetts. Massachusetts has a dense road network with significant urban freight traffic — Boston area distribution, port activity at New Bedford and other facilities, and manufacturing routes throughout the state. Federal baseline applies on Interstate routes. For state routes and urban roads, verify the FHWA state law compilation and any permit conditions.

Massachusetts has a large inventory of older bridges, some of which carry lower posted limits than the state baseline. Bridge formula compliance and current posted limits deserve attention on any route that includes urban or rural bridges older than the Interstate era.

Permit and route authority in Massachusetts

MassDOT Oversize/Overweight Permits handles over-limit permits for Massachusetts. Applications go through MassDOT’s current permit system. Massachusetts permits cover route, dates, vehicle configuration, and axle weights. Urban routes in the Boston area and other dense areas may carry specific permit conditions. Changes to equipment or routing require permit review.

Seasonal, route, and local checks

No statewide frost-law or seasonal weight restriction was confirmed for Massachusetts in this review. Massachusetts has spring thaw conditions that affect local roads, and municipalities have the authority to impose seasonal restrictions on local roads. For moves that use local roads in late winter or spring, checking with local road departments is the right approach rather than relying on this page’s seasonal field.

Tickets and enforcement notes

Massachusetts State Police Commercial Vehicle Enforcement Section is the confirmed enforcement agency. Massachusetts General Laws Chapter 90 section 19 is the official statute reviewed for overweight penalty context. For any citation, the specific MGL section, excess weight, and court instructions are the controlling documents.

Source-strength notes for Massachusetts

Across 6 source records, this page carries 3 high-confidence, 23 medium-confidence, and 3 low-confidence field designations. Permit agency, enforcement agency, and fine statute fields have direct official support. Seasonal is the area where confidence is lowest on this page.

Building a Massachusetts source file

A Massachusetts dispatch file should include MassDOT permit documentation, current scale ticket, approved route, and the MGL Chapter 90 s.19 reference. For Northeast I-90 and I-95 corridor planning, 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

What is MGL Chapter 90 section 19?

Massachusetts General Laws Chapter 90 section 19 is the official penalty statute reviewed for overweight violations in Massachusetts.

Who handles Massachusetts overweight permits and enforcement?

MassDOT Oversize/Overweight Permits issues over-limit permits. Massachusetts State Police Commercial Vehicle Enforcement Section handles roadside enforcement.

Does Massachusetts have spring weight restrictions?

No statewide source was confirmed. Massachusetts municipalities have authority over local road restrictions — check with local road departments in late winter.