[Code of Federal Regulations]
[Title 21, Volume 9]
[Revised as of April 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR1311.50]

[Page 144-145]
 
                         TITLE 21-FOOD AND DRUGS
 
   CHAPTER II--DRUG ENFORCEMENT ADMINISTRATION, DEPARTMENT OF JUSTICE
 
PART 1311_Digital Certificates--Table of Contents
 
Subpart B_Obtaining and Using Digital Certificates for Electronic Orders
 
Sec. 1311.50  Requirements for recipients of digitally signed orders.

    (a) The recipient of a digitally signed order must do the following 
before filling the order:

[[Page 145]]

    (1) Verify the integrity of the signature and the order by having 
the system validate the order.
    (2) Verify that the certificate holder's CSOS digital certificate 
has not expired by checking the expiration date against the date the 
order was signed.
    (3) Check the validity of the certificate holder's certificate by 
checking the Certificate Revocation List.
    (4) Check the certificate extension data to determine whether the 
sender has the authority to order the controlled substance.
    (b) A recipient may cache Certificate Revocation Lists for use until 
they expire.