A final revival plan for humpback whales off the West Coast has been published by the federal government after a period of five years.

According to this, shipping traffic and toxic spill out are considered to be the major threats to critical surroundings.

The issue of threatened whales has long been a main topic of discussion because of increased oil tanker traffic down the British Columbia coast. The challengers of oil shipping from the British Columbia coast call the policy on Tuesday as a victory.

"Definitely this recovery strategy creates another very strong impediment to Enbridge and to the presence of oil tankers in that area", said Susan Pinkus. She led a group named as Ecojustice and was part of a proceeding that was started last year trying to force the federal government to guard the environment of the whales and three other rare species.

The policy said that future growth of coastal and offshore areas is a danger for the life of whales. The authors mentioned that the 2010 blowout of an oil platform in the Gulf of Mexico act as a reminder of the possible disaster that can occur if all these issues are not curbed.

Scott Wallace of the David Suzuki Foundation said that the plan clearly identifies the areas of dangerous habitat and will start offering some plans to protect the environment within 180 days.