The complete Super Heavy Packet contains: Instructions, Super Heavy Request and Packet Checklist.
You must apply for a Super Heavy Permit if one of the following conditions exists:
The vehicle and load exceeds 254,300 pounds Gross Vehicle Weight (GVW);
The vehicle and load exceeds 200,000 pounds GVW, but does not exceed 254,300 pounds GVW with less than 95
feet of axle spacings;
The axle group weights exceed maximum permissible weights.
Cranes and Well Servicing units that do not qualify for General Single-Trip permits and do not meet the criteria of
Appendix B of Texas Administrative Code, Subchapters D or E.
Instructions for completing Super Heavy Permit forms
Applicants must submit initial requests for Super Heavy Permits by facsimile on Form MCD-305a, Super Heavy
Request Form (page 2), and MCD-305b, Super Heavy Request Form - Weight Sheet (page 3).
Prior to obtaining a Super Heavy Permit, an applicant must have:
An active TxDMV Number, or
An active USDOT number and has complied with Unified Carrier Registration.
Specific beginning and ending points relative to state-maintained highway intersections must be included on
Form MCD-305a.
A detailed loading diagram depicting the load on the hauling equipment must be submitted with Form MCD-305a
and MCD-305b.
Form MCD-305a must show the exact number of loads that will be moved on the proposed route (must match
the submitted Certification Regarding Agreement to Transport Super Heavy Load(s) (Form MCD- 305 SH CERT).
A copy of the signed and completed Certification Regarding Agreement to Transport Super Heavy Load(s) (Form
MCD-305 SH CERT). (Companies transporting their own equipment may leave the shipper information and the
shipper/logistics company certification fields blank on Form MCD-305 SH CERT.)
Applicant must indicate which non-departmental engineer (approved by TxDOT see page 5, item #2) will be used
to perform the bridge analysis and make recommendations to the TxDOT Bridge Division. TxDOT Bridge Division
engineers will verify the analysis and recommendations before a determination can be made concerning permit
issuance or denial. Fees charged by non-departmental engineers are the applicant's responsibility.
After receiving notification from the Motor Carrier Division (MCD) that all final approvals have been obtained,
the applicant must complete and submit Forms MCD-305a and MCD-305c.
Loads may be required to be weighed at the discretion of the TxDOT Bridge Division.
Motor Carrier Division Responsibilities:
After receiving Form MCD-305a, MCD-305b, MCD-305 SH CERT, and accompanying documentation, MCD will
select a tentative route in cooperation with the permit applicant and the districts the proposed route travels
through. MCD will collect information on all TxDOT bridges on the proposed route prior to sending it to a non-
departmental engineering firm hired by the applicant and approved by TxDOT.
MCD will collect information regarding roadways on the proposed route on all loads exceeding 800,000 pounds
GVW or 500,000 pounds GVW and exceeding 6,000 pounds per tire load to submit to TxDOT's Construction -
Pavements Division for analysis. Their approval is required before a permit can be issued. This analysis will be
performed simultaneously with the non-departmental engineer analysis.
The applicant will be notified by MCD once all final approvals are received.
Applicant Responsibilities:
Note: The Super Heavy permitting process takes six to eight weeks to complete.
All permit fees are non-refundable.
Super Heavy Application Packet
Fax: (512) 465-4254
Phone: (800) 299-1700
Email: MCD_Permit-Superheavy@txdmv.gov
Form MCD-305 (Rev. 09/2020
Page 1 of 6
The Texas Department of Motor Vehicles maintains the information collected through this form. With few exceptions, you are entitled upon request to be
informed about the information that we collect about you. Under §§552.021, 552.023 and 559.004 of the Texas Government Code, you are entitled to
receive and review the information, and to have us correct erroneous information.
Super Heavy Request
Page 2 of 6
Form MCD-305a (Rev. 09/2020)
Fax: (512) 465-4254
Phone: (800) 299-1700
Email: MCD_Permit-Superheavy@txdmv.gov
Application Information
New
Corrected
Final Application
Revised
Route Inspection Number
Permit ID Number
Customer Information
Company Name
Customer Account Number
Mailing Address City
State
Zip
Phone Number
Fax Number
Requested By
Email Address
Payment Method
MasterCard, Visa, Discover or American Express*
Account Number
*A service charge of 25 cents per permit plus 2.25 percent of
the total fee amount will be added to all credit card
transactions.
Escrow
Permit Account Card (PAC)
Credit Card Expiration Date
/
TxDMV Number or
Number
Current Texas Surety Bond on file with TxDMV
Current Unified Carrier Registration (UCR) with current insurance or
USDOT Number
I attest to having one of the following:
Load Information
Load Description
Industry
Maximum Width
Maximum Height
Number of Loads
Rear Overhang
Front Overhang Trailer Length
Overall Length
Underclearance
Payload Weight (MCD-305 SH CERT must reflect same weight)
Tare Weight
Gross Weight
Route Information
Starting City/State Line/Junction
Ending City/State Line/Junction
Route
Submitted Date/Time (for MCD use)
Proposed Move Date
Final Application Start Date
TxDOT Approved Outside Engineer (Supplied by Customer)
Super Heavy Request - Weight Sheet
Form must be accompanied by form MCD-305a (except for Final Request)
Must provide a Loading Diagram that depicts the above.
NOTE: Incomplete applications will not be processed.
Axle
10
Axle
9
Axle
8
Axle
7
Axle
6
Axle
5
Axle
4
Axle
3
Axle
2
Axle
1
Distance Between
Axles
Distance Between
Axles
Weights Per Axle
(x 1000)
Weights Per Axle
(x 1000)
Number of Tires
Per Axle
Number of Tires
Per Axle
Tire Size
Tire Size
Axle
20
Axle
19
Axle
18
Axle
17
Axle
16
Axle
15
Axle
14
Axle
13
Axle
12
Axle
11
Page 3 of 6
Form MCD-305b (Rev. 09/2020)
Email Address
Fax Number
Phone Number
Requested By
Distance Between
Axles
Weights Per Axle
(x 1000)
Number of Tires
Per Axle
Tire Size
Axle
30
Axle
29
Axle
28
Axle
27
Axle
26
Axle
25
Axle
24
Axle
23
Axle
22
Axle
21
Super Heavy Vehicle Information
For Single/Multiple Loads
Signature is required before permit can be processed
Page 4 of 6
Form MCD-305c (Rev. 09/2020)
Route Inspection Number
Permit ID Number
Signature Date
Title
Name (printed or typed)
Requested by:
Load Number Year and Make Last Five of VIN License Plate State Permit Start Date
Total number of vehicles:
Super Heavy Packet Checklist
Super Heavy Permit process will not begin until MCD receives the required completed forms.
Please use the following Checklist to ensure all documents have been submitted:
The tire size on each axle;
The tare and gross weight for each axle;
The load’s center of gravity;
The distance from the center of gravity to the center of the rear bolsters;
4.
Enclose a copy of the signed and completed Certification Regarding Agreement to Transport
Super Heavy Load(s) (Form MCD-305 SH CERT).
The number of axles;
The number of tires on each axle;
The distance between each axle;
The transverse spacing of each set of dual wheels;
The distance from the center of gravity to the center of the front bolsters;
The distance from the center of the front bolster to the center of the fifth wheel of the
truck;
Any other measurements as may be needed to verify that the weight of the over-
dimension load is adequately distributed among the various axle groups in the amounts
shown on the loading diagram.
The distance from the center of the rear bolster to the center of the closest axle;
Application requires the identification of outside engineers. For a current list of approved engineers
contact MCD.
2.
Completed Form MCD-305a 1.
Enclose required Loading Diagram. Loading Diagram must include:
3.
Page 5 of 6
Form MCD-305 (Rev. 09/2020)
Permit Fees: Cost:
1st Permit Request (MCD-305a)
Engineer Analysis required
(Crossing Bridges and/or over 800,000 lbs.**)
No Engineer Analysis required
(No Bridges crossed and/or less than 800,000 lbs.**)
2nd Permit Request (MCD-305a) must be
submitted within 30 days of first request.
Total Fees
Total Credit Card Fees*
Super Heavy Packet Checklist (cont.)
5. Enclosed non-refundable payment by Credit Card*, Permit Account Card (PAC), or Escrow
Account for the total applicable amounts listed below.
NOTE: Incomplete applications will not be processed.
6. Applicant will be notified by MCD once all final approvals are received.
The applicant must submit the complete Form MCD-305a and Form MCD-305c with
complete vehicle information to receive a permit.
*A service charge of 25 cents per transaction plus 2.25 percent of the total fee amount will be added to a credit card transactions.
**A fee will be required for every axle configuration.
Permit Fees: Cost:
1st Permit Request (MCD 305a) $435.00
Engineer Analysis required
(Crossing bridges and/or over 800,000 lbs.**)
$500.00
No Engineer Analysis required
(No Bridges crossed and/or less than 800,000 lbs.**)
$100.00
2nd Permit Request (MCD 305a) $470.00
If filling out application by hand, please use the Permit Fee table below to manually calculate permit cost.
If filling out application online, please click the appropriate box to the left of the Permit Fee in the table
below to automatically calculate permit cost on the right.
Page 6 of 6
Form MCD-305 (Rev. 09/2020)
For more information about Super Heavy Permits, visit our website at www.TxDMV.gov. For comments concerning the application process contact (800)
299-1700 or e-mail MCD_SizeWeight@TxDMV.gov.
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