; (3) assess whether laws, regulations, or regulatory practices (whether those of the Federal Government, States, political subdivisions of States, Indian tribes or tribal organizations (as such terms are defined in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 )), or foreign governments) pose a barrier to competitive entry into the communications marketplace or to the competitive expansion of existing providers of communications services; (4) describe the agenda of the Commission for the next 2-year period for addressing the challenges and opportunities in the communications marketplace that were identified through the assessments under paragraphs (1) through (3)