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Most of the OOT class 1 product line is authorized for transport under direct approval of the U.S. Department of Transportation (USDOT). This approval is evidenced by issuance of an EX-number, which is listed for each product in HAZLIST On-Line.

In some cases, special provisions are required for OOT to ship some of its products. These special provisions are allowed by USDOT in the form of a "Special Permit". Each special permit is referenced by a specific number, such as DOT-SP 4850, DOT-SP 8451, etc.

You should note that there is a difference between a special permit number and an EX-number. A special permit number is issued by USDOT to allow the party to transport HAZMAT under conditions not normally provided for under the Hazardous Materials Regulations (HMR).  An EX-number is issued by USDOT to signify the approval of specific explosive products for transport under conditions allowed by the HMR.  An EX-number is not a special permit number and a special permit number is not an EX-number.  EX-numbers must be marked on all packages of approved explosives; special permit numbers must appear only on packages that are being shipped under said special permit.  Additionally, the special permit number must appear on any shipping paper, in association with the hazardous materials description, that describes a special permit shipment.

Examples of EX-numbers and special permit numbers are:

EX-Numbers

Special Permit Numbers

EX1994050290

DOT-SP 4850

EX2011021344

DOT-SP 8451

The following table summarizes the special permits that OOT currently uses. You may click the special permit number to view a copy of the special permit.

SPECIAL PERMIT NUMBER

EXPIRATION DATE

MODES AUTHORIZED

COPY REQUIRED

SUMMARY

DOT-SP 4850
(16th Revision) 
File No: 0120.001

Updated
09/27/2018

08/31/2022
Renewal Request: 
Motor Vehicle
Rail Freight
Cargo Vessel
CAO Air

Yes
No
Yes
Yes

Authorizes the shipment of Cord, detonating, mild effect and charges, shaped, flexible, linear, in lengths not exceeding 100’, containing not more than 50 grains/ft of explosive substance as a 1.4D explosive.

Authorized shipping description:
Cord, detonating, mild effect; 1.4D; UN0104 or
Charges, shaped, flexible, linear; 1.4D; UN0237

DOT-SP 8451
(41st Revision)
File No: 0120.001A

Updated
06/27/2019

12/31/2020
Renewal Request:

 

 

 

Motor Vehicle
Rail Freight
Cargo Aircraft

Yes
No
Yes

Authorizes the transport of not more than 25 grams of certain class 1 materials in a special shipping container.

Authorized shipping description:
Articles, explosive, n.o.s. (*); 1.4E; UN0471
* Technical name of material being shipped

DOT-SP 12335
(6th revision)
File No:   
0120.106

Updated
10/04/2018
10/04/2018
Update:  

This special permit is no longer necessary. The provisions of DOT-SP 12335. The provisions were incorporated into the Hazardous Materials Regulation under Docket No. HM-233F in a final rule published in the Federal Register on January 21, 2016 (81 FR 3635).
This authority is now contained in 49 C.F.R. 173.62(c)(5), Packing Instruction 139.

Motor Vehicle
Cargo Vessel
Cargo Aircraft
  Authorizes the transport of certain Division 1.1D and 1.4D detonating cords without the ends being sealed.

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