The purposes of these regulations (part 249) are:

To assist in protecting the off-reservation nonexclusive fishing rights which are secured to certain Indian tribes by their treaties with the United States;

To promote the proper management, conservation and protection of fisheries resources which are subject to such treaties of the United States;

To provide for determination of restrictions on the manner of exercising nonexclusive fishing privileges under rights secured to Indian tribes by such treaties of the United States necessary for conservation of the fisheries resources;

To assist in the orderly administration of Indian Affairs;

To encourage consultation and cooperation between the states and Indian tribes in the management and improvement of fisheries resources affected by such treaties;

To assist the states in enforcing their laws and regulations for the management and conservation of fisheries resources in a manner compatible with the treaties of the United States which are applicable to such resources.

The conservation regulations of this part 249 are found to be necessary to assure that the nonexclusive rights secured to certain Indian tribes by treaties of the United States to fish at usual and accustomed places outside the boundaries of an Indian reservation shall be protected and preserved for the benefit of present and future members of such tribes in a manner consistent with the nonexclusive character of such rights. Any exercise of an Indian off-reservation treaty fishing right shall be in accordance with this part and any applicable area regulations issued hereunder.