Nothing in this chapter shall be construed or intended to prevent the Secretary of Labor from conforming, if not in conflict with the provisions of this chapter, to minimum standards heretofore or hereafter adopted or promulgated by the Secretary of Labor or any other agency, department or bureau of the federal government, for the administration of Chapter 4 of this title or employment service. The secretary is hereby empowered and authorized to make such agreements not in conflict with the provisions of this chapter with the Secretary of Labor or any other agency of the federal government, as may be necessary to conform to such minimum standards, or as may be necessary to conform to minimum standards adopted by the Secretary of Labor or any other agency, department or bureau of the federal government in connection with grants to the Department of Labor for the administration of Chapter 4 of this title or employment service.