Skip to main content
Unsupported Browser Detected

Internet Explorer lacks support for the features of this website. For the best experience, please use a modern browser such as Chrome, Firefox, or Edge.

Celebrating 50 Years of the Marine Mammal Protection Act

July 30, 2022

NOAA Fisheries marks 50 years of marine mammal science, conservation, and recovery under the Marine Mammal Protection Act.

Gray whales swimming Gray whales were nearly hunted to extinction by commercial whaling. Protections under the MMPA, ESA, and the end of commercial whaling have allowed the species to recover. Credit: NOAA Fisheries (Permit #19091).

Fifty years ago in 1972, Congress passed the Marine Mammal Protection Act in response to growing concerns that certain species and populations of marine mammals were in danger of extinction or had been depleted as a result of human activities. In its 50th anniversary year, we are celebrating the science and conservation successes under this historic act.

Marine mammals are vital parts of our ocean ecosystems. From Arctic ringed seals to humpback whales in the tropics, all marine mammals in U.S. waters are protected under the MMPA.

This Act set the global benchmark for marine mammal conservation as the first piece of legislation to call specifically for an ecosystem-level approach to wildlife protection. Its primary goal is to support sustainable populations of marine mammals based on the capacity of the habitat. Since it was enacted, no marine mammal species have gone extinct in U.S. waters. The Act's protections have stopped the decline of many marine mammal populations and have led to the recovery of several, such as populations of humpback whales, gray whales, gray seals, and California sea lions.  

Image
Hawaiian monk seal RN58 (Luana) nuzzles her new pup
The Hawaiian monk seal is one of the world’s most endangered seal species. After decades of declining numbers, the species is starting to recover due in part to its protection under the MMPA. Here, Hawaiian monk seal RN58 (Luana) nuzzles her new pup. Credit: Hawai’i Department of Land and Natural Resources.

Marine Mammal Protection Act Features

Join NOAA Fisheries in Celebrating the 50th Anniversary of the Marine Mammal Protection Act

NOAA Fisheries Assistant Administrator Janet Coit reflects on 50 years of protecting marine mammals and looks to the future.

Read the leadership message

Image
A humpback mother and calf swimming off the West Coast
A humpback mother and calf swimming off the West Coast. Credit: NOAA Fisheries/Ed Lyman. NOAA Fisheries Permit #14682.

Celebrating 50 Years of Marine Mammals in the Spotlight

NOAA Fisheries celebrates the 50th anniversary of the Marine Mammal Protection Act. This landmark legislation protects all marine mammals in U.S. waters, including four Species in the Spotlight.

Our work to conserve and protect marine mammals 

Image
5184x3456-mom with twins.jpg
Hawaiian monk seal Mom (GV18) with rare twin pups in May 2019 on Lisianski Island. Credit: U.S. Fish and Wildlife Service/Pete Leary.

What the 50th Anniversary of the Marine Mammal Protection Act Means to Us

On the 50th anniversary of the Marine Mammal Protection Act, NOAA Fisheries staff reflect on 50 years of marine mammal conservation accomplishments and look forward.

See what the 50th anniversary of the Marine Mammal Protection Act means to us

Image of a killer whale with quote from Catherine Marzin
Catherine Marzin, Deputy Director, Office of Protected Resources

50 Years of Ocean & Coastal Conservation

As part of the anniversary celebration, we reflect on 50 years of marine mammal conservation accomplishments and look forward. We have accomplished a lot, and the status of many marine mammal species has improved. The next decades will bring new conservation challenges in the form of climate change and new and expanded ocean uses, such as offshore wind energy. We will continue to use the best scientific information available to ensure marine mammals are healthy and functioning elements of our ocean’s ecosystems.

This year we're not just celebrating 50 years of the MMPA. Three other foundational environmental acts also share the anniversary: the Clean Water Act, the Coastal Zone Management Act, and the National Marine Sanctuaries Act.

Learn how you can get involved and help protect your ocean and coasts for the next 50 years to come

50 years of Ocean and Coastal Conservation campaign logo, depicting a bird in sea grass, whale tail out of water, and seal on rock
50 years ago, Congress passed the MMPA, the Clean water Act, the Coastal Zone Management Act, and the National Marine Sanctuary Act to protect our nation's ocean and coasts. NOAA, the Marine Mammal Commission, and the U.S. Fish and Wildlife Service celebrates these Acts through the 50 years of Ocean and Coastal Conservation campaign.

Last updated by Office of Communications on October 21, 2022

Marine Mammal Protection