The Systematic Compilation of Federal Legislation (SR) (German: Systematische Sammlung des Bundesrechts, SR; French: Recueil systématique du droit fédéral, RS; Italian: Raccolta sistematica, RS) is the official compilation of all Swiss federal laws, ordinances, international and intercantonal treaties that are in force.
It is structured by topic, and comprises the constitutions (federal and cantonal), federal laws, ordinances, select federal decrees and important cantonal texts.
The first version was published in paper form in 1948, in response to the need for legal clarity after World War II. Today, it is available in paper form (in red binders with removable leaves), as well as electronically (available on the Internet). It is published by the Federal Chancellery in Switzerland's three official languages (German, French and Italian), with only a few texts in Romansh and English.
An initial systematic classification system was adopted when the Compilation was created in 1948, but was completely overhauled in the 1960s with the switch to a system of removable leaves. Each act included in the collection has an "SR number" corresponding to its position in the thematic classification. International law in force in Switzerland is classified in the same way, but each number begins with a 0.
Initially conferred with a legal value, it has now been stripped of this, and replaced by the Official Compilation of Federal Legislation (German: Amtliche Sammlung des Bundesrechts, AS; French: Recueil officiel du droit fédéral, RO; Italian: Raccolta ufficiale delle leggi federali, RU).