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Perforating Gun Approvals 
ATF Licenses & Permits
and more...


OCS GunTags™  (Updated 8/11/2014)

  • Did you know that perforating guns must be marked and labeled, just like any other hazardous material? 
  • Did you know that all explosives, including perforating guns,  must be marked with an EX-number assigned by U.S. Department of Transportation (49 CFR 172.320)?

Meeting these requirements with perforating guns can be difficult due to odd configurations, uneven surfaces, etc.  The OCS GunTag™ is the simple, one-step answer.

GunTag (thumbnail) (click the image to view a larger picture)
  • One tag incorporates the DOT hazard label PLUS all markings required:   proper shipping name, ID number, Ex-number, and consignor's address.
  • Includes the your company's EX-number for perforating guns.
  • Reusable -- laminated for extra-long life and many trips to the field.

All you have to do to use the OCS GunTag™ is attach one to each perforating gun using a wire, string, or nylon tie-strap or rubberband (not included).  Nothing to fill out, nothing to mark, NOTHING TO FORGET!!

Quantity Price
1 - 9 $10.00 each
10 - 49 $8.00 each
50 + $5.00 each

Prices do not include sales tax or shipping charges.

2 ways to order:

  1. Call OCS at + 1 (817) 551-0660
  2. E-mail the completed order form to

You must provide a copy of each perforating gun approval for which you are ordering GunTags™.


Perforating Gun Approvals  (Updated 9/01/2016)

Perforating guns, like all other explosives, must be approved by DOT before they can be transported or offered for transport.  DOT has advised that they expect that:

  1. each company that loads perforating guns to obtain their own approval(s) rather than using a generic approval as has been the practice in the past and

  2. a separate approval must be obtained for each gun system to be loaded.

Normally, testing under the UN test series and a review by DOT is required prior to issuance of the approval.  This can be a time-consuming and expensive endeavor, and realizing that, DOT, working with the Association of Energy Service Contractors (AESC) and the Institute of Makers of Explosives (IME), has approved a new system for obtaining perforating gun approvals.  This system involves the use of previously examined and approved specifications for gun systems and does not require any testing

OCS is ready to assist you in obtaining your approvals  
Quantity Price
1-3 $750.00 each
4 + $700.00 each

OCS can assist you with obtaining approval of loaded jet perforating guns containing Kodiak™ Disks (JPG/Kodiak™)*.  The cost to assist you in obtaining a JPG/Kodiak™ approval is $750.00

* Kodiak™ license is required to purchase the Kodiak™ product.

Inquiries should be directed to  


ATF Licenses and Permits

With the implementation of the Safe Explosives Act, the ATF nonlicensee and nonpermittee status is going away.  Beginning May 24, 2003, everyone, including former nonlicensees and nonpermittees, must have a permit to transport, ship, cause to be transported, or receive explosives in interstate or intrastate commerce.

OCS is ready to assist you in obtaining your permit.  The fee is $800, which does not include the ATF filing fee.  For more information, please read the notice "What you need to know about obtaining an ATF User Permit."

Don't get caught in the last minute shuffle, apply now.

Inquiries should be directed to  


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This page last updated 02/19/18 10:04 AM.
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