The binding legal principles established by this case are: (1) The power to apply criteria for determining when an area should have a particular category of municipality (section 155(3)(a)) vests in the Municipal Demarcation Board by necessary implication from section 155(3)(b), because determining municipal boundaries cannot be done without first determining which category of municipality is involved. Sections 155(3)(a) and (b) must be read together as part of a coherent constitutional scheme. (2) National legislation may establish criteria for determining categories of municipalities, but may not empower the Minister or any other executive authority to apply those criteria, as this function belongs to the independent authority mandated to determine boundaries. (3) The power of provinces to establish municipalities under section 155(6) is an executive power only, not a legislative power, and must be exercised consistently with national legislation enacted under sections 155(2) and (3). (4) Provincial governments have legislative and executive power under section 155(5) to determine the types of municipalities to be established in their provinces; national government may not prescribe guidelines that provinces must take into account in exercising this power. (5) Where the Constitution uses the phrase "as determined by national legislation" in relation to a matter of fundamental importance to democratic governance (such as the term of office of elected councils), this power may not be delegated but must be exercised by Parliament itself. (6) Chapter 7 of the Constitution places specific constraints on Parliament's residual legislative power under section 44, and these constraints must be identified through careful interpretation of the constitutional text and scheme. (7) Section 164 governs matters concerning local government that are not dealt with in the Constitution, allowing national or provincial legislation (within a national framework) to regulate such matters. (8) Municipal powers under section 160(6) to regulate internal arrangements, business and proceedings are narrow and relate to working committees and internal procedures, not to the establishment or regulation of executive structures or committees that form part of the municipality's constitutional structure.