MCD-301A Form – If you work with TxDOT vehicles and need to move oversize or overweight loads legally on Texas roads, the MCD-301A form is the official application for the Annual Oversize/Overweight Exempt Permit (TxDOT Vehicles Only). Issued by the Texas Department of Motor Vehicles (TxDMV), this specialized permit helps TxDOT agencies operate vehicles and loads that exceed standard size and weight limits without standard permitting hassles.
This guide covers everything you need: eligibility, how to complete the form, submission steps, requirements, and the direct MCD-301A PDF download. All information comes directly from the official TxDMV website for accuracy and currency as of March 2026.
What Is the MCD-301A Form?
The MCD-301A is a two-page application titled “Application for Annual Oversize/Overweight Exempt Permit (TxDOT Vehicles Only)” (Rev. 07/17). It allows TxDOT agencies to obtain an annual exempt permit for vehicles and non-divisible loads that exceed Texas legal size and weight limits.
Unlike general oversize/overweight (OS/OW) permits used by private motor carriers, this form is restricted to TxDOT vehicles only. It is not available to commercial trucking companies or individual operators.
Key features include:
- Annual validity from the permit start date.
- Coverage for maximum width, height, gross weight, overhangs, and detailed axle configurations.
- Attestations for non-divisible loads and no overdimension from multiple items.
This exempt permit streamlines operations for state agency needs while ensuring compliance with Texas Transportation Code rules.
Who Needs the MCD-301A Form? (Eligibility)
The form is exclusively for TxDOT vehicles. Private companies, contractors, or other agencies must use the Texas Permitting & Routing Optimization System (TxPROS) for company-specific or vehicle-specific annual envelope permits instead.
You qualify if you are:
- A TxDOT agency or department
- Transporting non-divisible loads on TxDOT vehicles
- Operating equipment that exceeds standard limits (e.g., width over 8’6″, height over 14′, gross weight over 80,000 lbs)
Important note: All dimensions must be entered numerically — “legal” is not accepted. The load must be non-divisible, and you must attest that hauling multiple items does not create overdimensions.
How to Complete the MCD-301A Form: Step-by-Step Guide?
Follow these steps exactly, as the application must be filled out in its entirety before a permit is issued.
Page 1 – Agency & Load Information
- Agency Name, Customer Account Number, Mailing Address, City, State, ZIP
- Contact Person, Phone, Fax, Email
- Load details: Maximum Width, Height, Gross Weight, Rear Overhang, Front Overhang
- Checkboxes:
- Trailer has less than 18″ ground clearance? (Yes/No)
- Trailer has hydraulic lift? (Yes/No)
- Attestations:
- Hauling multiple items does not create an overdimension
- Load is nondivisible
- Maximum Length (numerical value only)
Weight Information (Axle Table)
- Complete for up to 14 axles if exceeding legal axle weights or 80,000 lbs gross:
- Weight (x1,000 lbs)
- Number of Tires
- Tire Tread Width
- Gauge
- Steerable or Fixed (S/F)
- Axle Spacing (feet only)
Page 2 – Vehicle Information
- Unit Number
- Year and Make
- Last Five of VIN
- License Plate
- State
- Permit Start Date
Pro Tip: Use exact measurements and double-check all fields. Incomplete applications will be rejected.
How to Submit the MCD-301A Form?
- Print and complete the form (or fill digitally if allowed).
- Fax the entire application to: 512/465-4251.
- For questions or status: Call (800) 299-1700 or email [email protected].
Processing occurs during normal business hours (8 a.m.–5 p.m. Monday–Friday). The permit is valid for one year from the start date you select.
Download MCD-301A PDF (Official & Current)
Get the latest version directly from TxDMV — no registration required.
Direct Download Link:
Download MCD-301A Form PDF (Rev. 07/17 – 2 pages, 732 KB)
This is the exact file hosted on the official TxDMV Forms page. Always download from txdmv.gov to ensure you have the current version.
Benefits of the Annual Oversize/Overweight Exempt Permit
- One-time annual application instead of multiple single-trip permits
- Covers TxDOT-specific operations efficiently
- Ensures legal compliance for oversized state equipment and loads
- Supports essential infrastructure and maintenance work across Texas
General Oversize/Overweight Permits in Texas (For Non-TxDOT Users)
If you are not a TxDOT agency, do not use MCD-301A. Instead:
- Apply online via TxPROS at txpros.txdmv.gov (recommended)
- Choose from company-specific envelope permits ($4,000 annual), vehicle-specific, manufactured housing, hay, timber, or other specialized annual permits
- Use the Permit Wizard tool or call (800) 299-1700 for guidance
Always verify your load’s size and weight limits first on the TxDMV Oversize/Overweight Permits page.
Frequently Asked Questions (FAQs) – MCD-301A Form
- Is the MCD-301A form free?
No fee is listed on the form itself (internal TxDOT process). - Can private companies use MCD-301A?
No — strictly for TxDOT vehicles only. - How long is the permit valid?
One full year from the selected Permit Start Date. - What if my trailer has low ground clearance?
You must check “Yes” or “No” and ensure compliance with all safety rules. - Where do I find the latest form?
Always download from the official link above or the TxDMV Forms page. - Need help with axle weights or configurations?
Contact the TxDMV Motor Carrier Division at the numbers listed.
Final Tips for Compliance
- Measure everything accurately before applying
- Keep a copy of the approved permit in the vehicle
- Review Texas size & weight limits regularly
- For emergencies or questions, use the toll-free line (800) 299-1700
The MCD-301A form remains the go-to document for TxDOT’s annual oversize/overweight exempt permits. Download it today, fill it out completely, and fax it in to stay compliant on Texas highways.
Official Sources:
- TxDMV Forms Page
- TxDMV Oversize/Overweight Permits Page
- Direct MCD-301A PDF (Rev. 07/17)
Bookmark this guide and the download link for quick reference in 2026 and beyond. Safe travels!
For the most current details, always visit txdmv.gov.
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