[Code of Federal Regulations]
[Title 50, Volume 7]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 50CFR424.21]

[Page 859]
 
                    TITLE 50--WILDLIFE AND FISHERIES
 
CHAPTER IV--JOINT REGULATIONS (UNITED STATES FISH AND WILDLIFE SERVICE, 
 
PART 424_LISTING ENDANGERED AND THREATENED SPECIES AND DESIGNATING
 
                     Subpart B_Revision of the Lists
 
Sec. 424.21  Periodic review.

    At least once every 5 years, the Secretary shall conduct a review of 
each listed species to determine whether it should be delisted or 
reclassified. Each such determination shall be made in accordance with 
Sec. Sec. 424.11, 424.16, and 424.17 of this part, as appropriate. A 
notice announcing those species under active review will be published in 
the Federal Register. Notwithstanding this section's provisions, the 
Secretary may review the status of any species at any time based upon a 
petition (see Sec. 424.14) or upon other data available to the Service.