((a)) The Secretary of Labor shall undertake studies and provide information to labor unions, management, and the general public concerning the needs and abilities of older workers, and their potentials for continued employment and contribution to the economy. In order to achieve the purposes of this chapter, the Secretary of Labor shall carry on a continuing program of education and information, under which he may, among other measures—

((1)) undertake research, and promote research, with a view to reducing barriers to the employment of older persons, and the promotion of measures for utilizing their skills;

((2)) publish and otherwise make available to employers, professional societies, the various media of communication, and other interested persons the findings of studies and other materials for the promotion of employment;

((3)) foster through the public employment service system and through cooperative effort the development of facilities of public and private agencies for expanding the opportunities and potentials of older persons;

((4)) sponsor and assist State and community informational and educational programs.

((b)) Not later than six months after the effective date of this chapter, the Secretary shall recommend to the Congress any measures he may deem desirable to change the lower or upper age limits set forth in .