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Marine Mammal Protection Act (MMPA) of 1972
Overview and Highlights Complete Text of the Act (pdf) MMPA Reauthorization and Testimony
Annual Reports to Congress Text of the Act by Section (pdf) MMPA Bulletin

Overview

The Marine Mammal Protection Act of 1972 (MMPA) was most recently reauthorized in 1994. In passing the MMPA in 1972, Congress found that:

  • certain species and population stocks of marine mammals are, or may be, in danger of extinction or depletion as a result of man's activities;
  • such species and population stocks should not be permitted to diminish beyond the point at which they cease to be a significant functioning element in the ecosystem of which they are a part, and, consistent with this major objective, they should not be permitted to diminish below their optimum sustainable population level;
  • measures should be taken immediately to replenish any species or population stock which has diminished below its optimum sustainable level;
  • there is inadequate knowledge of the ecology and population dynamics of such marine mammals and of the factors which bear upon their ability to reproduce themselves successfully; and
  • marine mammals have proven themselves to be resources of great international significance, aesthetic and recreational as well as economic.

The MMPA established a moratorium, with certain exceptions, on the taking of marine mammals in U.S. waters and by U.S. citizens on the high seas, and on the importing of marine mammals and marine mammal products into the United States.

Definitions:

Take:

The term "take" is statutorily defined to mean "to harass, hunt, capture, or kill, or attempt to harass, hunt, capture or kill any marine mammal." 

Harassment

Under the 1994 amendments, the Congress statutorily defined and divided the term "harassment" to mean any act of pursuit, torment, or annoyance which --

  1. Level A Harassment- has the potential to injure a marine mammal or marine mammal stock in the wild; or
  2. Level B Harassment- has the potential to disturb a marine mammal or marine mammal stock in the wild by causing disruption or behavioral patterns, including, but not limited to, migration, breathing, nursing, breeding, feeding, or sheltering.

In addition, the 1994 amendments established a number of other provisions. For scientific research, enhancement and public display, the 1994 Amendments established new authority to issue permits and authorizations while eliminating other responsibilities. New provisions establish a General Authorization for low impact scientific research projects involving Level B harassment of non-endangered marine mammals, and allow NMFS to issue permits for educational and commercial photography purposes. Lastly, the 1994 amendments eliminated NMFS jurisdiction over marine mammals held for public display and changed documentation requirements involving transport, purchase, sale or export to maintain updated inventory information.

Under the MMPA, the Secretary of Commerce is responsible for the conservation and management of pinnipeds (other than walruses) and cetaceans. The Secretary of the Interior is responsible for walruses, sea and marine otters, polar bears, manatees and dugongs. The Secretary of Commerce delegated MMPA authority to NMFS. Part of the responsibility that NMFS has under the MMPA involves monitoring populations of marine mammals to make sure that they stay at optimum levels. If a population falls below its optimum level, it is designated as "depleted," and a conservation plan is developed to guide research and management actions to restore the population to healthy levels. For information on species that are considered depleted under the MMPA, click here.

The MMPA provides that the moratorium on taking of marine mammals can be waived for specific purposes if the taking will not disadvantage the affected species or stock. It also indicates that permits may be issued to take or import any marine mammal species, including depleted species, to conduct scientific research or to enhance the survival or recovery of a species or stock. Permits may also be issued to allow for the taking of a marine mammal from the wild or the import of a non-depleted species for purposes of public display. These permits are very specific and designate the number and species of animals that can be taken, as well as time, date, location, and method of takings.

In 1994, Congress amended the MMPA, establishing a new regime to govern the taking of marine mammals incidental to commercial fishing operations. This new regime included the preparation of stock assessments for all marine mammal stocks in waters under U.S. jurisdiction, development and implementation of take reduction plans for stocks that may be reduced or are being maintained below their optimum sustainable population levels due to interactions with commercial fisheries, and studies of pinniped-fishery interactions.

The MMPA allows the incidental, but not intentional, taking, by U.S. citizens engaged in activities other than commercial fishing, of small numbers of depleted as well as non-depleted marine mammals if, after notice and opportunity for public comment, the Secretary of Commerce:

  1. finds that there will be a negligible impact on the affected species or stock, and there will not be an unmitigatable adverse impact on the availability of such species or stock for taking for subsistence uses by Alaska Natives; and
  2. prescribes necessary regulations that detail methods of taking, monitoring, and reporting requirements. However, the 1994 amendments provide that this regulation requirement may be waived if the proposed activity results in only harassment, and no serious injury or mortality is anticipated.

The Act's moratorium on taking does not apply to taking by any Indian, Aleut, or Eskimo who resides in Alaska and who dwells on the coast of the North Pacific Ocean or the Arctic Ocean if such taking is for subsistence purposes or for creating and selling authentic Native articles of handicrafts and clothing, and is not done in a wasteful manner.

Since the 1994 Amendments became law, NMFS has published several regulations to implement requirements under the Act. These include the general authorization for scientific research, the new management regime for governing the incidental taking of marine mammals in commercial fisheries, the prohibition on intentional lethal take in commercial fishing, the prohibition on approach closer than 100 yards to humpback whales in Hawaii, and consolidation of regulations for special exception permits to take, import, export, or carry out any other otherwise prohibited act involving marine mammals for the purpose of scientific research or enhancement for the survival or recovery of a species or stock.

Information about NMFS' implementation of the 1994 Amendments to the MMPA can be found in the quarterly MMPA Bulletin, as well as in the MMPA Annual Report to Congress.

The complete text of the Marine Mammal Protection Act is also available, as retrieved from the U.S. Code Server. at the U.S. House of Representatives Internet Law Library.

If you would like additional information on marine mammal issues, we offer a list of links to other organizations' internet sites.

Marine Mammal Protection Act Text Table of Contents

The documents included in this directory are in PDF format. To read these documents you will need a copy of Adobe Acrobat Reader. The software is available to you for free

The Marine Mammal Protection Act of 1972, as Amended Through 1997

To protect marine mammals; to establish a Marine Mammal Commission; for other purposes.

Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That this Act, with the following table of contents, may be cited as the "Marine Mammal Protection Act of 1972".

TABLE OF CONTENTS

Title I - Conservation and Protection of Marine Mammals

Title II - Marine Mammal Commission

Title III - International Dolphin Conservation Program

Title IV - Marine Mammal Health and Stranding Response Program

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