A secret draft of what would be Australia's biggest trade agreement shows it will be toothless in enforcing environmental agreements.

The draft environment chapter of the twelve-nation Trans Pacific Partnership agreement published by WikiLeaks proposes next to no enforcement mechanisms with those that are suggested opposed by each of the 12 nations other than the United Stastes.

A summary on the WikiLeaks website says the draft makes use of the 'get out clause' approximately 43 times, using language such as: "Where possible and appropriate, the Parties shall seek to complement and utilise their existing cooperation mechanisms and take into account relevant work of regional and international organisations."

The word "may" is also found 43 times in the 23-page draft.

Governments are urged to "...make every effort to arrive at a mutually satisfactory resolution...", "...take measures to prevent...", "...make best efforts...", "...exercise restraint in taking recourse...", and retain "the right to make decisions...".