[Code of Federal Regulations]
[Title 33, Volume 1]
[Revised as of July 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 33CFR101.200]

[Page 338]
 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELANDSECURITY
 
PART 101_MARITIME SECURITY: GENERAL--Table of Contents
 
               Subpart B_Maritime Security (MARSEC) Levels
 
Sec. 101.200  MARSEC Levels.


    (a) MARSEC Levels advise the maritime community and the public ofthe 
level of risk to the maritime elements of the nationaltransportation 
system. Ports, under direction of the local COTP, willrespond to changes 
in the MARSEC Level by implementing the measuresspecified in the AMS 
Plan. Similarly, vessels and facilities requiredto have security plans 
under part 104, 105, or 106 of this subchaptershall implement the 
measures specified in their security plans for theapplicable MARSEC 
Level.
    (b) Unless otherwise directed, each port, vessel, and facilityshall 
operate at MARSEC Level 1.
    (c) The Commandant will set the MARSEC Level consistent with 
theequivalent Homeland Security Advisory System (HSAS) Threat 
Conditionand that Threat Condition's scope of application. 
Notwithstanding theHSAS, the Commandant retains discretion to adjust the 
MARSEC Levelwhen necessary to address any particular security concerns 
orcircumstances related to the maritime elements of the 
nationaltransportation system.
    (d) The COTP may temporarily raise the MARSEC Level for the port,a 
specific marine operation within the port, or a specific industrywithin 
the port, when necessary to address an exigent circumstanceimmediately 
affecting the security of the maritime elements of thetransportation 
system in his/her area of responsibility.