[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: 50CFR424.20]

[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. 424.20  Emergency rules.

    (a) Sections 424.16, 424.17, 424.18, and 424.19 notwithstanding, the 
Secretary may at any time issue a regulation implementing any action 
described in Sec. 424.10 in regard to any emergency posing a 
significant risk to the well-being of a species of fish, wildlife, or 
plant. Such rules shall, at the discretion of the Secretary, take effect 
immediately on publication in the Federal Register. In the case of any 
such action that applies to a resident species, the Secretary shall give 
actual notice of such regulation to the State agency in each State in 
which such species is believed to occur. Publication in the Federal 
Register of such an emergency rule shall provide detailed reasons why 
the rule is necessary. An emergency rule shall cease to have force and 
effect after 240 days unless the procedures described in Sec. Sec. 
424.16, 424.17, 424.18, and 424.19 (as appropriate) have been complied 
with during that period.
    (b) If at any time after issuing an emergency rule, the Secretary 
determines, on the basis of the best scientific and commercial data 
available, that substantial evidence does not then exist to warrant such 
rule, it shall be withdrawn.