Instructions for completing DEA Form 251 CSOS DEA Registrant Certificate Application Instructions
Introduction: Form DEA-251 is for DEA Registrants requesting a CSOS digital certificate for electronic ordering of controlled substances. A DEA Registrant is the individual who signed the most recent application for DEA Registration or the individual authorized to sign the most recent application for DEA Registration. Only DEA Registrants may submit a CSOS DEA RegistrantCertificate Application. All other individuals requesting the ability to sign electronic orders for controlled substances must enroll in the CSOS program as either a Coordinator (Form DEA-252) or Power of Attorney (Form DEA-253).

Completing the application: The information must be TYPED into the online form with the exception of signatures, affirmations and the notary acknowledgement sections, which must be completed in blue or black ink. All fields must be completed.

The Registrant applicant must name him/herself as Coordinator or delegate the role to another Principal Coordinator applicant or existing subscriber.

The applicant should review the CSOS DEA Registrant Certificate Application Checklist to ensure all required documents are included with his/her application prior to mailing the application package to the CSOS Registration Authority.

Mail the completed applications and their attachments to one of the following:

Drug Enforcement Administration
Sterling Park Technology Center / CSOS
8701 Morrissette Drive
Springfield, VA 22152

What the applicant will receive: DEA Registrant applicants will receive one CSOS Signing Certificate for each DEA Registration number enrolled. In addition to receiving a CSOS Signing Certificate for each DEA Registration number identified, each Registrant applicant will be issued one CSOS Administrative Certificate if serving the role of Coordinator.

The applicant will receive a pair of activation notices for each certificate issued.

• An E-mail activation notice will be sent for each certificate, which will contain an Access Code unique to that certificate
• A postal mailed activation notice will be sent for each certificate, which will contain an Access Code Password unique to that certificate as well as information for logging in to DEA's secure certificate retrieval Web site

The codes must be entered on the DEA E-Commerce Web site in order to retrieve the digital certificate.

Section 1 - Applicant Information (All fields required)

Field Name	Information Description
Applicant Last Name	Enter the last name of the Registrant applicant.
Applicant First Name	Enter the first name of the Registrant applicant.
MI	Enter the middle initial of the applicant. Enter 'X' if the applicant does not have a middle initial.
Applicant Social Security Number	Enter the Social Security Number of the applicant. This information will be kept private and used for internal purposes as stated in the Privacy Policy.
Applicant Bus. Phone	Enter the business phone number for the applicant. This phone number will be kept private and will be used only when necessary for correspondence concerning your CSOS application or CSOS Certificate(s).
Applicant E-mail Address	Enter the individual E-mail address for the applicant, which must not be the same E-mail address as any other applicant. This E-mail address will be kept private and will be used for correspondence concerning your CSOS application or CSOS Certificate(s).
DEA Registration No.	Enter the DEA Registration Number for which the applicant is requesting electronic ordering ability and, if indicated, Principal Coordinator status. The number entered on the application MUST appear as it does on the associated DEA Registration Certificate. Inconsistency between the application and the registration certificate will result in approval delays or denial.
DEA Registrant Name	Enter the name of the DEA Registered location as it appears on the DEA Registration Certificate (Form 223). Inconsistency between the application and Registration Certificate will result in approval delays or denial.
Security Code	Enter a security code for the applicant. This information will be kept private and used for authentication purposes. Use letters only. Do not include any numbers.
No. of Addendums	Enter the number of CSOS Certificate Application Registrant List Addendums (Form DEA-254) submitted. Enter '0' if no addendum forms are attached. DEA Registrant List Addendums allow applicants to enroll for Certificates for additional DEA Registration numbers.
Applicant Business Address	Enter the business address of the CSOS Coordinator applicant. This address may be used for correspondence concerning CSOS Certificate applications, renewals, and revocations.
CSOS Coordinator Last Name	Enter the last name of the individual who will fulfill the role of Principal Coordinator for the DEA Registration number(s) identified. Enter the last name of the Registrant applicant if he/she is to fulfill the role of Principal Coordinator.
CSOS Coordinator First Name	Enter the first name of the individual who will fulfill the role of Principal Coordinator for the DEA Registration number(s) identified. Enter the first name of the Registrant applicant if he/she is to fulfill the role of Principal Coordinator.

Section 2 - Applicant Signature (individual whose name appears in Section 1) Applications that have not been signed will be denied and returned immediately.

Field Name	Information Description
Applicant Signature, Date	The Registrant applicant must sign and date the application using blue or black ink in the presence of a certified notary public. The party signing this application must be the same party listed in Section 1 - Applicant Information (First Name/Last Name/MI).

Section 3 - Notary Acknowledgement

Field Name	Information Description
Notary Acknowledgement	Enter the last name of the Registrant applicant.

Warning: When the applicant signs the application, he/she is stating that he/she has read, understood, and agreed to abide by the rules and regulations contained in the Controlled Substance Ordering System Subscriber Agreement and Certificate Policy. He/she is certifying that the information, statements and representations provided by him/her on the application are true and accurate to the best of his/her knowledge. He/She understands that presenting false information is a criminal offense and is punishable by law. Section 843(a)(4)(A) of Title 21, United States Code, states that any person who knowingly or intentionally furnishes false or fraudulent information in the application is subject to imprisonment for not more than four years, a fine of not more than $30,000.00 or both.

In accordance with the Paperwork Reduction Act of 1995, no person is required to respond to a collection of information unless it displays a valid OMB control number. The OMB control number for the collection of this information is 1117-0038. Public reporting burden for this collection of information is estimated to average 1.24 hour, including time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information.

Please contact DEA Diversion E-Commerce Support for enrollment assistance.
Phone: 1-877-DEA-ECOM (1-877-332-3266)
E-mail: CSOSsupport@deaecom.gov