#Legislative History
No. 1 Art. 148 FC transferred the basic structures of the old Federal Constitution of 1874 (Art. 71 old FC) into the new Constitution of 1999. The Dispatch on the new Federal Constitution of 20 November 1996 stated that the provision «forms the constitutional basis of the entire parliamentary law» (BBl 1997 I 404 f.). The constitutional legislator intended to anchor both parliamentary supremacy and the bicameral system as supporting pillars of Swiss democracy.
No. 2 The equal status of both chambers in para. 2 was already established in the Constitution of 1848 and was consciously retained. The Dispatch emphasised that this «perfect bicameralism» represents a characteristic of Swiss parliamentarism that distinguishes it from most other bicameral systems (BBl 1997 I 405).
#Systematic Classification
No. 3 Art. 148 FC opens the 2nd Section of the 5th Title of the Federal Constitution on the federal authorities. The provision forms the basis for the entire parliamentary law (→ Art. 149-162 FC) and defines the position of the Federal Assembly within the framework of the separation of powers.
No. 4 The supreme authority is subject to the reservation of the rights of the people and the cantons (→ Art. 138-142 FC), which characterises Switzerland's semi-direct democracy. The relationship to the other powers is determined by → Art. 174 FC (Federal Council), → Art. 188 FC (Federal Supreme Court) and the principle of separation of powers (→ Art. 5 para. 1 FC).
No. 5 The equal status of the chambers (para. 2) is concretised in the provisions on the joint exercise of powers (→ Art. 156 FC), the identical procedural rules (→ Art. 159-162 FC) and the United Federal Assembly (→ Art. 157 FC).
#Elements of the Offence / Content of the Norm
#Supreme Authority (para. 1)
No. 6 The term «supreme authority» has developed historically and, according to Thurnherr, encompasses both the legislative function and certain governmental and control functions. The supremacy manifests itself in various dimensions.
No. 7 Disputed scope: Academic opinion is divided on the scope of parliamentary supremacy. Eichenberger advocates a broad understanding: the supreme authority encompasses all legislative and governmental functions. Aubert/Mahon and Sägesser follow this broad approach.
No. 8 In contrast, Tschannen advocates a narrow understanding: supremacy exists only insofar as the Federal Assembly can constitute or control other federal authorities without itself being subject to counter-control. Biaggini follows this restrictive view and limits the pre-eminent position to elections, high-level supervision and jurisdictional conflicts.
No. 9 Mastronardi takes a mediating position: he builds on Tschannen's definition but extends the scope to legislation and other powers.
#Reservation of Popular Rights
No. 10 The reservation «subject to the rights of the people and the cantons» relativises parliamentary supremacy. Direct democracy (→ Art. 138-142 FC) sets limits for the Federal Assembly: constitutional amendments are subject to the mandatory referendum (→ Art. 140 FC), federal acts to the optional referendum (→ Art. 141 FC).
No. 11 This restriction is constitutive for the Swiss system. The Federal Assembly is not sovereign in the sense of Westminster democracy, but shares supreme authority with the people as constitutional legislator and referendum authority.
#Bicameral System (para. 2)
No. 12 The Federal Assembly must consist of two chambers: the National Council as representation of the people (→ Art. 149 FC) and the Council of States as representation of the cantons (→ Art. 150 FC). This dual structure reflects the federalist structure of Switzerland.
No. 13 The equal status of the chambers means that both have identical powers. Every decision requires the concordant decision of both councils (→ Art. 156 para. 2 FC). There is no pre-eminent position of one chamber, such as the German Bundestag has over the Bundesrat.
#Legal Consequences
No. 14 Concrete powers follow from the supreme authority: the Federal Assembly enacts federal acts (→ Art. 163 FC), elects the members of the other supreme federal authorities (→ Art. 168, 175 para. 2 FC) and exercises high-level supervision (→ Art. 169 FC).
No. 15 The equal status of the chambers has procedural consequences: in case of disagreement, the differences elimination procedure comes into effect (Art. 89 ff. ParlA). If no agreement is reached, the bill is deemed to have failed (Art. 91 para. 2 ParlA).
No. 16 Parliamentary supremacy limits the powers of the other branches of government. The Federal Council cannot issue independent ordinances without a legal basis (→ Art. 182 para. 2 FC). The Federal Supreme Court is bound by federal acts (→ Art. 190 FC).
#Disputed Issues
No. 17 Scope of parliamentary supremacy: The central point of dispute concerns the scope of «supreme authority». The broad doctrine (Eichenberger, Aubert/Mahon, Sägesser) sees this as a comprehensive pre-eminent position. The narrow doctrine (Tschannen, Biaggini) limits it to specific control powers. Mastronardi mediates between both positions.
No. 18 Relationship to the separation of powers: It is disputed how supreme authority relates to the separation of powers. Part of the doctrine sees this as a contradiction to the principle of checks and balances. Others emphasise that supremacy is sufficiently limited by popular rights and the constitutional order of powers.
No. 19 Perfect bicameralism: The absolute equal status is partially criticised, as the Council of States represents small cantons disproportionately. The prevailing doctrine defends the system as a federalist corrective to the population proportionality of the National Council.
#Practical Guidance
No. 20 When interpreting parliamentary powers, Art. 148 FC should be consulted as the basic norm. The supreme authority establishes a presumption in favour of parliamentary jurisdiction in jurisdictional conflicts.
No. 21 The equal status of the chambers prohibits any form of circumvention: business cannot be handled unilaterally by one chamber, even if the other remains inactive. The differences elimination procedure is mandatory.
No. 22 The reservation of popular rights must be considered with every parliamentary decision. Acts subject to referendum must meet the requirements of direct democracy, particularly regarding the unity of subject matter (→ Art. 139 para. 3 FC).
No. 23 BGE 135 I 19 shows that principles such as the free mandate are derived from the parliamentary position, which also apply in the pre-parliamentary phase. The supreme authority thus extends beyond actual parliamentary activity.