[Code of Federal Regulations]

[Title 15, Volume 3]

[Revised as of January 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 15CFR921.3]



[Page 95]

 

                  TITLE 15--COMMERCE AND FOREIGN TRADE

 

CHAPTER IX--NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT 

                               OF COMMERCE

 

PART 921_NATIONAL ESTUARINE RESEARCH RESERVE SYSTEM REGULATIONS--Table 

of Contents

 

                            Subpart A_General

 

Sec. 921.3  National Estuarine Research Reserve System biogeographic 

classification scheme and estuarine typologies.



    (a) National Estuarine Research Reserves are chosen to reflect 

regional differences and to include a variety of ecosystem types. A 

biogeographic classification scheme based on regional variations in the 

nation's coastal zone has been developed. The biogeographic 

classification scheme is used to ensure that the National Estuarine 

Research Reserve System includes at least one site from each region. The 

estuarine typology system is utilized to ensure that sites in the System 

reflect the wide range of estuarine types within the United States.

    (b) The biogeographic classification scheme, presented in appendix 

I, contains 29 regions. Figure 1 graphically depicts the biogeographic 

regions of the United States.

    (c) The typology system is presented in appendix II.