(a) The department shall make agreements, arrangements, or plans to cooperate with the federal government in carrying out the purposes of this chapter and Subchapter F, Chapter 117, or of any federal statutes pertaining to rehabilitation, and to this end may adopt methods of administration that are found by the federal government to be necessary, and that are not contrary to existing state laws, for the proper and efficient operation of the agreements, arrangements, or plans for rehabilitation.
(b) To the extent resources are made available by the federal government, the department may make agreements, arrangements, or plans to cooperate with the federal government in carrying out the purposes of any federal statute pertaining to the disability determination function under the Social Security Act and to this end shall adopt methods of administration that are found by the federal government to be necessary to the disability determination function and that are not contrary to existing state laws.